It's been the worst kept secret on Fox for weeks now, but that doesn't make it any less exciting:

On March 8, Gwyneth Paltrow returns to Glee as Holly Holiday. The actress, whose first appearance highlighted my favorite episode of the season, is booked on two installment, as she'll take over a sex education class and cozy up to Will.

Although not featured in the following promo for "Sexy," John Stamos also reprises the character of Dr. Carl, while this picture makes it look like Burt will try to bond with his son over Kurt's sexual orientation. Check out the official Fox trailer now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.