Book 3 of Dork Diaries
 
Nikki's school is holding a talent competition and Nikki can't wait to start practising dance moves with her BFFs, Chloe and Zoey, and impressing Brandon, her crush, with her singing skills! But then Nikki finds out that her arch-nemesis, MacKenzie, is entering the contest too, and she's determined to steal the limelight from Nikki and her friends. Can a dork like Nikki take on the most popular girl in school and win? 
 
Rachel Renee Russell