Will Britney join in the fun at the awards show?

Just after her ratings record-breaking appearance on "How I Met Your Mother," insiders are telling OK! magazine that BRITNEY SPEARS could grace the Kids' Choice Awards orange carpet this Saturday in Los Angeles.

The slime-tastic awards show will be hosted by JACK BLACK and is a celeb fave -- MILEY CYRUS is set to perform and other stars including CAMERON DIAZ, SHIA LaBEOUF, HAYDEN PANETTIERE, ASHLEE SIMPSON, AMERICA FERRERA, JENNIFER LOVE HEWITT, HARRISON FORD, STEVE CARELL, CHRIS BROWN, HOWIE MANDEL, HEIDI KLUM and RYAN SEACREST are expected to attend the festivities.

The show airs March 29 at 8 p.m. on Nickelodeon.