Secret Admirer is an episode of the ALVINNN!!! and The Chipmunks series.
Alvin thinks that Kevin has a secret crush on one of The Chipettes, so the girls try to let Kevin down gently by being annoying.
Alvin catches Kevin in a daze when they're supposed to be involved in an alien fight. Alvin suggests he has a crush, and, after denying it four times, Kevin explains he does. Kevin refuses to say with whom, so Alvin decides to write a love note for him. At their home, Alvin writes a love note while Simon is displeased and offers up a math equation that solves out to "you complete me," and Theodore suggests a simple heart on a piece of paper. Following Theo's idea, Kevin launches the heart as a paper plane and runs away, only for it to land at the feet of The Chipettes. Kevin awkwardly confronts the girls before running away once again. At The Chipettes' Treehouse, the girls consider the ways to let him down easy though each way is heartbreaking. Eleanor comes up with the idea that they should act unappealing to Kevin and he'll stop liking them. Alvin informs Simon about the situation at school, and they argue over who Kevin might be talking about prior to agreeing to follow him. They discover the girls have taken an interest in Kevin: Brittany attempts to groom him in the cafeteria, Jeanette performs a love chant by throwing glitter everywhere, and Eleanor becomes clingy. Meanwhile, The Chipmunks are confused by what they're witnessing. Unable to take it anymore, Kevin confesses that Pamela is his crush. In an attempt to make Kevin feel better, the chipmunks retrieve Kevin and Pamela so they could enjoy a romantic dinner together in the park, with a little added assistance from Alvin and Brittany.
- "I Got A Crush" 
- Goof: Janice Karman was credited for directing the episode twice: before and after the titlecard.
- The song in this episode was written by AwkwardMarina.
- This is the first episode in this series where the boys are shown to have clear feelings for The Chipettes.
- When this episode premiered in the US, it aired with a rerun of Suck Toad.