Paris Jackson My Heart Throbs for Bieber

1/26/2012 11:47 AM PST

Paris Jackson -- My Heart Throbs for Justin Bieber

Not even Michael Jackson's 13-year-old daughter Paris can resist the charms of Justin Bieber -- introducing him moments ago at her father's tribute show in Hollywood ... and nearly melting in the process.

In her intro, Paris said, "We are all very big fans of [Justin] and his music" -- and then, with a coy smile, she added, "I know I am."

Justin then emerged and performed his own rendition of "Rockin' Robin" -- which MJ famously covered on his first solo album back in 1972. It wasn't half bad either.