Lady Gaga, Nicki Minaj, Coldplay Confirmed For I Heart Radio Festival

Lady Gaga, Nicki Minaj, Coldplay Confirmed For I Heart Radio Festival

Two-day fest, set for September 23-24 in Las Vegas, also features the Black Eyed Peas, Alicia Keys, Carrie Underwood and others.By James Montgomery Lady Gaga Photo: Jag Gundu/ Getty Images It's being billed as "the biggest live music event...

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