Best Moments From The Star-Studded iHeartRadio Music Awards 2015 [Photos]

The 2015 iHeartRadio Music Awards saw some pretty epic moments this weekend, and some of the most hotly anticipated performances of the year. The top prize of 2015 iHeartRadio Innovator Award went to Justin Timberlake, but he wasn't the biggest winner of the night...

Madonna and Taylor Swift at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

Apart from winning three accolades - for Artist of the Year, Song of the Year and Best Lyrics - Taylor Swift was winning in many other ways. She's been gushing to everyone who'll listen recently  about Queen of Pop Madonna apparently praising her music in an interview, but the 'Blank Space' singer landed the chance to perform with her idol as she and her guitar joined the diva on stage for a rendition of Madonna's new single 'Ghosttown', taken from recently released thirteenth album 'Rebel Heart'.

Jennifer Hudson and Iggy Azalea at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

'I might be okay but I'm NOT FINE AT ALL. #MyFangirlLife #TaylorAndMadonna', Taylor posted to her Twitter followers alongside a picture of the pair of them on stage together. They weren't the only dream duet of the night, however. Jennifer Hudson and Iggy Azalea recreated their video for the latter's single 'Trouble', with J-Hud in full cop gear and Iggy looking her usual mischievous self.

More: Watch the video for 'Trouble'

Jamie Foxx and Chris Brown at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

The Awards show host Jamie Foxx also got up for a little performance of his own, playing 'You Changed Me' with Chris Brown ahead of the release of his forthcoming fifth album 'Best Night of My Life 2'. He didn't impress everyone all night though, having made a less than flattering remark regarding Bruce Jenner's transition from male to female.

More: Listen to 'You Changed Me'

Meghan Trainor at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

Meghan Trainor came in on Sunday night at LA's Shrine Auditorium with her latest single 'Dear Future Husband' in a full, ultra-glam sailor outfit, taking the rockabilly ethos of the tune to the max. The 'All About That Bass' hitmaker has gone under fire recently for the 'sexist' lyrics of the track, but there's no doubt she emanated girl power with this live rendition.

More: Watch the video for 'Dear Future Husband'

Rihanna at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

Rihanna debuted her newest song 'B**** Better Have My Money' on stage in a green Versace fur coat, making one of the night's most memorable spectacles, while Kelly Clarkson - who released her US number one album 'Piece by Piece' in February - performed her latest hit 'Heartbeat Song'.

More: Watch the video for 'Heartbeat Song'

Kelly Clarkson at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)

Further iHeartRadio awards victors came in the form of Sam Smith, Calvin Harris, Hozier, not to mention 5 Seconds of Summer who landed the rather tongue-in-cheek award for Best Fan Army.

5 Seconds of Summer at iHeartRadio Music Awards 2015 (Credit: Kevin Winter at Getty Images Entertainment)