"I've never had much singing training as dancing has always been my thing but as soon as I heard Lachy sing I was blown away. This became particularly apparent when I needed some guidance for the singing for The Wiggles albums and Lachy has helped me throughout all the recording processes and harmonies," she said. "He also plays the piano incredibly well and I just remember loving listening to him play backstage. Being able to experience, together, this amazing time of becoming Wiggles has been the best thing to happen to me." Awwww. The purple Wiggle has equally sweet things to say about the Wiggles' first female member: "Emma … is an incredibly hard worker and very talented and I was drawn towards her love for life and her energy towards everything she does. She always has the most beautiful smile on her face and is pretty good at everything she does. I find it so attractive when someone doesn't take themselves too seriously." The pair have reportedly spent "360 days of every year for the last two and a half years" together. A tough gig by anyone's standards.

Rock and roll history has seen many couples in bands - but few have happy endings... 1. Fleetwood Mac Easily the messiest of all intra-band relationships. Formed in 1967, the band was Mick Fleetwood, John McVie, Christine McVie, Lindsey Buckingham, and Stevie Nicks. Christine McVie was married to John McVie from 1968–1976 and they very publicly divorced during the band's infamous Rumours tour. Buckingham and Nicks were in a relationship for six years, but the pressures of the band interfered. Nicks then went on to have an affair with Mick Fleetwood, who was married at the time. There might be a joke somewhere here about Nicks' infamous cocaine habit and the song Wake Up, Lachy, but we wouldn't do that. The Mac might be one of the few couple-heavy bands who still tour today.

2. Sonic Youth Arguably the coolest rock chick post-Debbie Harry, noise rockers Sonic Youth's Kim Gordon was married to fellow vocalist and guitarist member Thurston Moore from 1984 til 2011, when they decided to call both marriage and band quits. 3. Velvet Underground

Influential nihilist rock band the Velvet Underground's enigmatic female member Nico (Christa Paffgen) was a lover of both singer Lou Reed and, later, co-founder John Cale. Her tenure with the band came to end reportedly due to "artistic differences" but one imagines things might have been awkward after a while. 4. ABBA When the Swedish pop group formed 1972, it was comprised of two couples: Agnetha Fältskog and Björn Ulvaeus, who were married (that lasted til 1980) and Benny Andersson and Anni-Frid "Frida" Lyngstad, who began dating in 1969 and were married from 1978 until 1981. By 1982 though, both couples had called it a day, and the band also split up.

5. The White Stripes Garage rock duo White Stripes, Meg and Jack White initially pretended that they were brother and sister, when in actual fact they were a married couple, from 1996 until 2000. Wacky. Interestingly, the band really took off once they divorced. 6. Ike and Tina Turner

Possibly the worst rock and roll ending came from Ike and wife Tina, who formed a musical partnership in 1959 before marrying in 1962. Their marriage and professional career came to a very bitter end in 1978 when, after having dealt with years of jealousy over her burgeoning solo career as well as controlling abuse, Tina walked out on Ike, famously with just 36 cents in her purse. 7. The Mamas & the Papas Another messy 60s affair, the Mamas and the Papas was initially comprised of married couple Michelle and John Phillips, and Denny Doherty and Cass Elliot. Until Denny and Michelle had an affair. Amazingly, the band survived the drama and stayed together for a few more years. 8. Wings

Formed in 1971, Wings featured former Beatle Paul McCartney and wife Linda, she of the vegetarian sausage roll fame. Although Wings went through a lot of line-up changes, Paul and Linda stuck it out til the end/Mull of Kintyre (which, astoundingly, was the first single to sell over two million copies).