"I'll Always Be Here" is an original song performed by The Chipmunks and The Chipettes in the ALVINNN!!! and The Chipmunks episode Baby Mama Drama and has yet to be released as part of an Alvin and the Chipmunks album.
Lyrics
The Chipmunks & The Chipettes:
Shoo-ap-shoo-ah, shoo-ap-shoo-ah-ah-ah
You are mine, and you'll be to me
End of time, there's a love that's so
Genuine, I'll never let you go
In my heart, there's a place for you
When we're apart, no one else will do
It's in the cards, so I thought you should know
When I'll always be here (always)
To hold you near
You're my darling, you're my sweetest sugar pie
You are my heart, and everything else that's mine
You don’t depart, 'cause I don't even know what I'll do, ooh-ooh-ooh-ooh