Last year she sparked outrage with her Bangerz tour when she groped backing dancers and encouraged her audience to smoke marijuana.

But on Thursday night, Miley Cyrus went a whole lot further with her on-stage antics, kicking off her Dead Petz club gigs in Chicago with an almighty bang.

The former Disney star hit the stage at The Riviera Theatre in her most outrageous costumes yet, including one barely-there look which featured a prosthetic penis.

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Hitting headlines: Miley Cyrus performed the first date of her Dead Petz tour at The Riviera Theatre in Chicago on Thursday night in her most outrageous stage costumes yet

The 22-year-old performed songs from her latest album for a sold-out crowd in Chicago, the first stop in a six-date tour.

At one point the controversial star strutted onto stage in little more than metallic bondage-style underwear and matching thigh-high boots, showing off a pair of fake boobs and a prosthetic penis.

A glittery purple mullet wig was perched on top of her head, as the star belted out her new tracks including Dooo It' and F**kin F**ked Up.

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Everything on show: The 22-year-old flashed her bum in a skimpy gold leotard and glitter tights

Up close and personal: Miley's regular tour companion, 6ft7 dancer Amazon Ashley was also clad in some racy looks as she joined the former Disney star on stage

Controversial: Miley's favourite accessory seemed to be a huge prosthetic penis which she kept on for much of the gig

The star continued her run of colourful costumes by covering herself in a huge smiling sun teamed with moon boots, while another look consisted of a skimpy gold leotard decorated with the name of her tour.

Miley's regular tour companion, 6ft7 dancer Amazon Ashley was also clad in some racy looks, joining the singer on stage in a pair of silver leggings, gold dollar print nipple pasties and a huge rainbow wig, as Miley proceeded to nuzzle her chest.

The colourful theme continued with the stage design, with huge balloons floating around the theatre and a drop of confetti heralding the finale.

Rebel: At one point the controversial star strutted onto stage in little more than metallic bondage-style underwear and matching thigh-high boots, showing off a pair of fake boobs and the prosthetic penis

Sing it : A glittery purple mullet wig was perched on top of her head, as the star belted out her new tracks including Dooo It' and F**kin F**ked Up

Signature style: Another look consisted of a skimpy gold leotard decorated with the name of her tour

Mini tour: The star is performing six dates for the tour which follows her 23-track self-released album

Let the sun shine: The star continued her run of colourful costumes by covering herself in a huge smiling sun teamed with moon boots

Colourful: Miley covered her face in glitter as she strutted around the confetti-strewn stage

In demand: Miley will take her tour, which also features The Flaming Lips, to Detroit, followed by Washington, New York and Philadelphia, before a final show in Boston on December 6

Miley will take her tour, which also features The Flaming Lips, to Detroit, followed by Washington, New York and Philadelphia, before a final show in Boston on December 6.

Last year the former Hannah Montana star caused controversy miming a sex act on a man wearing a Bill Clinton mask, groping her backing dancers and wearing a glittering leotard seemingly decorated with cannabis leaves during her epic Bangerz tour.

Concert promoters were forced to deny her tour was in jeopardy due to to complaints from outraged parents, while the singer also addressed the rumours herself on Twitter, saying: 'You can't say I didn't warn you. Now sit back relax & enjoy the show. #bangerztour.'

Constant companion: Amazon Ashley danced her way through Miley's set as the pals got up close and personal

One step further: Last year the former Hannah Montana star caused controversy during her epic Bangerz tour

Paying tribute: The singer made sure her pets were included in her stage costumes, with her dog Milky's name included on one of her ensembles

Doing it her way: It's little surprise the star has gone all out with her latest tour, after releasing the accompanying album away from the relative constraints her record label RCA

Acting out? She told the New York Times of the free Soundcloud release that her new music 'was not meant to be a rebellion. It was meant to be a gift'

In the spotlight: Miley's tour dates have no age restrictions according to ticket vendor sites

All that glitters: The Wrecking Ball star is no stranger to controversy following her infamous VMAs performance and her 2014 Bangerz tour

What a crowd: The gig-goers were showered in confetti and colourful balloons during the finale

And it's little surprise the star has gone all out with her latest tour, which according to ticket websites has no age restrictions for the venues, after self-releasing the accompanying album in September away from the relative constraints her record label RCA.

She told the New York Times of the 23-track free Soundcloud release at the time that 'this music was not meant to be a rebellion. It was meant to be a gift.'

However, the hitmaker admitted her label didn't get chance to hear the record until it was finished.

Giving the audience an eyeful: Miley strutted around in a series of glittery leotards

What a performance: Miley has been joined on the tour by her friends and album collaborators The Flaming Lips

Work it: The star stomped around the stage in her daring outfits as she belted out her latest tunes

Quite the picture: Miley provided plenty of photo ops in her outlandish costumes

Butter wouldn't melt: Another costume had the star dressed as a stick of butter

All change: Miley also dressed as a baby and a sparkling moon during the epic gig

Another look: A gold bra which barely covered her assets and high-waisted underwear made up another costume

Where's the rest of it? Miley wore a shredded pvc white skirt with her Milky Milk costume

Sparkles: A pair of glittery silver cowboy boots finished off the ensemble

'They had never heard the record until it was done,' she confessed, adding that she'll never be the type of artist to fit in with the mainstream.

'I don't think I'll grow that way. It seems like it would be backwards,' she said. '[My team] said they'd never seen someone at my level, especially a woman, have this much freedom. I literally can do whatever I want. It's insane.

'I can just do what I want to do, and make the music I want to make.'

Fancy a snack? The star appeared to struggle to move in her butter costume

Old pals: Miley joined her regular collaborators the Flaming Lips for a few tracks

Barely there: The star wasn't afraid, as usual, to flash plenty of flesh on stage

Reach for the stars: Miley's team had obviously been busy preparing her elaborate costumes

Changing it up: The style chameleon went through multiple costume changes during the epic show

Moonman: At one point she covered up in a silver space suit as she sung in front of a huge glitterball

Big girls don't cry: Miley also slipped into a baby costume, complete with huge diaper and bonnet