Spella McCartney

Spella McCartney is a fashion designer mentioned in Season 3.

Season 3
In "The Princess' Ball," Chimera mentions that her dress is made by Spella after her tug of war with Stella results in her getting pizza on it.

Trivia

 * Spella is a parody of real-life fashion designer Stella McCartney.
 * World of Winx character Spella McCarter bears a similar name.