Miley Cyrus is putting her 21st birthday celebrations on hold so she can concentrate on her performance at the American Music Awards on Sunday (24Nov13). The Wrecking Ball singer turns 21 on Saturday (23Nov13), but she will be too busy rehearsing to party properly so she is reportedly planning to save the fun until after she leaves the stage at the AMAs. Sources tell E! News that Cyrus will host a private birthday party at the residence of Los Angeles party king Jeff Beacher, the man behind one of the star's favourite Hollywood hang-outs, Beacher's Madhouse. On Friday (22Nov13), Cyrus made sure fans and friends didn't forget it was her big day by tweeting, "I want everyone to party like its their birffffday (sic) tomorrow," while on Saturday (23Nov13), Cyrus shared a picture of her dogs asleep on her bed, writing, "All I could want on my birthday."