By Sandra Rose  | 

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Janet Jackson's celebrity pals surprised her with a birthday celebration at On The Record at Park MGM In Las Vegas on Saturday, May 14.

Janet was feted by her ex-boyfriend, Jermaine Dupri, rapper Nelly, music producers Jimmy Jam and Bryan-Michael Cox, and singers Usher and Anderson.Paak, who DJ'd the party.

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Usher, 2nd from right, grabbed the mic and sang Happy Birthday to Janet, who turns 56 on Monday, May 16. He is pictured with (L-R): Anderson.Paak, Jermaine Dupri and Nelly.

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The celebrity pals posed for a star-studded selfie for the 'Gram.

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Janet performed at the Kentucky Derby Night at Lynn Family Stadium on May 07, 2022 in Louisville, Kentucky.

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Here Janet poses with singer Ronnie DeVoe, left, his wife Shamari Fears, 2nd from right, and singer Johnny Gill, right, at the Kentucky Derby on May 06, 2022 in Louisville, Kentucky.