The 25-year-old also reveals the stories behind collaborations with Stevie Wonder, J.Lo and Meghan Trainor.
Beyonce did Stevie Wonder proud.
Beyonce, Ed Sheeran, Ariana Grande and many more team up to celebrate one of music's living legends.
Pharrell Williams, Elton John, Stevie Wonder, One Direction and dozens more sing the Beach Boys.
The celebrated musician will be lead the star-studded event.
Click through our Birthday Babes gallery to find out when your favorite celebs celebrate their big day this year!
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