Meghan Trainor Is 'All About the Bass' at the iHeartRadio Music Festival 2014

Meghan Trainor strikes a pose while attending the 2014 iHeartRadio Music Festival held at the MGM Grand Garden Arena on Saturday (September 20) in Las Vegas.

Not only did the 20-year-old singer perform that night, she also entertained the crowd at the iHeartRadio Music Festival Village earlier in the day. Watch the video below of her performing hit song “All About the Bass”!

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“K my life is complete. I met hilaryduff and we sang my song #allboutthatbass thank you @charissat !!??,” Meghan wrote on Instagram with a pic.