|PERFORMER||Joey Mazzarino blue|
|Stephanie D'Abruzzo green|
They appear from nowhere within Hooper's Store to provide backing vocals on Grover's song, "Grover Can Do It All." Alan is surprised that Grover has brought them in. "Did you not hear the lyrics?," Grover replies. They accompany Grover on his reprisals of the song and later, Grover lets Mando borrow them for a song of his own ("One Thing at a Time").