Two-time Grammy winner Adele will guest star on an upcoming episode of "Ugly Betty."

When? ABC won't say, but ABC has set "Ugly Betty" for a return this May after "In the Motherhood" and "Samantha Who?" end their temporary runs on Thursday night.

ABC will reveal that in the episode titled "In the Stars," Adele will perform at a photo shoot which Betty, Marc and Matt produce for a YETI assignment that culminates in a surprise wedding.

Earlier this spring, British soul sensation Adele won Grammys for Best New Artist and Best Female Pop Vocal Performance.