Mandy Moore has booked a guest spot on the two-hour May 20 finale of 'Grey's Anatomy.' According to reports, Moore will play a "patient being treated by Bailey (Chandra Wilson)," with further details yet to be revealed. For more ABC finale dates, click here. [TV Guide]

More casting news after the jump.Mandy Moore has booked a guest spot on the two-hour May 20 finale of 'Grey's Anatomy.' According to reports, Moore will play a "patient being treated by Bailey (Chandra Wilson)," with further details yet to be revealed. For more ABC finale dates, click here. [TV Guide]

'The View' has booked a number of guest hosts through the month of May. Among the stars stopping by are Joan Rivers (Apr. 13), and 'Dancing With the Stars'' Kelly Osbourne (Apr. 14), along with Ali Wentworth (Apr. 20), Jenny Sanford (Apr. 27) and Vanessa Williams (May 11). [TV Guide]

And now for the latest 'Gossip Girl' gossip: According to sources, rebellious teen Jenny Humphrey (played by Taylor Momsen) will be MIA at the beginning next season, due to an event that takes place in the season 3 finale. When Jenny will return remains to be seen, but given her track record, we're sure Gossip Girl will find her eventually. [Ausiello Files]