AC/DC's performance at the 2015 Grammy Awards ignited rumors that the Illuminati was in control of the award show. The band is seen here performing at the Roger's Centre in Toronto on Nov. 7, 2008. (Creative Commons via user Bitey

The 2015 Grammy Awards celebrated the biggest names in music Sunday night, and as has happened every year in recent memory, conspiracy theorists emerged to offer their takes on why the event is run by the Illuminati.

Many fans have long contended that the Grammys are a way for a shadowy occult group called the Illuminati to display the imagery, artists and music that they supposedly use to control the populace.

Stars like Lady Gaga, Jay-Z, Beyonce, Katy Perry, Madonna, Taylor Swift and Rihanna have long been members of the cultish sect, according to these conspiracy hawkers. They also allege that an elite set of "masters of the universe" use the Illuminati to world events through media, music and business.

The 2015 Grammy Awards lived up to the expectations built up in recent years Sunday, providing plenty of fodder for those who see Illuminati symbolism in every triangle, eyeball or piece of potentially Satanist or Freemason imagery that appears at such award shows. The Oscars and other events are also often cited for being Illuminati showcases.

This year, the Illuminati rumors started as soon as the show kicked off, as many members of the crowd at the 2015 Grammys wore red "devil horns" while AC/DC played the hit song "Highway to Hell" for the revelers.

The contention among those who believe the Illuminati is real is that the horns -- which even Katy Perry herself donned for the show -- are homages to Satan or the devil, and nods to the Illuminati itself.

The twitterverse absolutely lit up with tweets both during and after AC/DC's set connecting it and the horn-wearing with the Illuminati:

THEY'RE ACTUALLY WEARING DEVIL HORNS IRL AT THE GRAMMYS... ILLUMINATI CONFIRMED! — HDY CAPTAIN CURT (@FLOSSTRADAMUS) February 9, 2015

Anyone notice all the #Illuminati in the front row with their devil horns? #GRAMMYs

😈󾌴󾌴󾌴 — BILLY CHARLES NY ✌️ (@BillyCharlesNY) February 9, 2015

Illuminati is in full swing at the Grammys tonight.

Highway to Hell with everyone in horns!!!! They're not

even trying to hide it now. — JAMAL DA RAPPER (@jamal_darapper) February 9, 2015

So these people at the #Grammys are wearing devil horns. Smh#Illuminati — buckbeezybaby (@buckbeezybaby) February 9, 2015

But AC/DC and devil horns were not the only things that brought conspiracy theorists to Twitter to tell about how the Illuminati had infiltrated the Grammys.

The simple fact that Kanye West and Madonna performed together at the event was enough for some people to predict that the show would be peppered with references to the Illuminati:

Madonna and Kanye performing together? You know this is about to be an illuminati performance.lol #GRAMMYs — Jarrad Williams (@JWill2G) February 9, 2015

Get ready for @Madonna's Illuminati ritual. #GRAMMYs — 𖤐 lil durk 𖤐 (@legendarydurk) February 9, 2015

And even some of the promotional materials for the 2015 Grammy Awards caused some people to link the event to the group:

And Lady Gaga once again provided fodder for Illuminati conspiracy theorists this year: