He opened up about this humorous phenomenon in an interview with Fairly Odd Parents creator Butch Hartman: https://www.dexerto.com/tv-movies/nysncs-chris-kirkpatrick-has-signed-more-autographs-as-fairly-odd-parents-chip-skylark-than-his-own-name-3368940/

Singer Chris Kirkpatrick says he signed more autographs as Chip Skylark from Fairly OddParents than as himself from NSYNC "Kids are like screaming, throwing stuff ... they had pictures they drew of me. And I'm like Oh my god, how would Chip sign his name?"

He opened up about this humorous phenomenon in an interview with Fairly Odd Parents creator Butch Hartman: https://www.dexerto.com/tv-movies/nysncs-chris-kirkpatrick-has-signed-more-autographs-as-fairly-odd-parents-chip-skylark-than-his-own-name-3368940/