Victoria Beckham and SpongeBob SquarePants
Jemal Countess/WireImage; Nickelodeon
04/08/2009 AT 01:05 PM EDT
is going deep for her next TV role.
The former Spice Girl and current fashionista, who's already appeared on ABC's Ugly Betty
, is lending her voice to a character on Nickelodeon's hit cartoon SpongeBob Square Pants
, a rep for the show confirms to PEOPLE.
Beckham, 34, will play Queen Amphitrite, goddess of the sea, in a half-hour episode called "Neptune's Party," scheduled to air in summer 2010.
In the meantime, SpongeBob and the rest of his pals are celebrating the show's 10th anniversary with a special half-hour SpongeBob vs. the Big One
starring Johnny Depp
. The Pirates of the Caribbean
star will voice the part of super surfer Jack Kahuna Laguna in the episode airing April 17 (8 p.m. ET) on Nickelodeon.
– Aaron Parsley