Kristin Chenoweth is adorable.

Neil Patrick Harris is talented.

But Justin Timberlake would put all previous Glee guest stars to shame if the following rumors becoms a reality: sources say the singer is close to signing on for the role of Will Schuester's sibling on season two of this Fox smash.

"There is more than a little resemblance between Justin and Matthew Morrison... so the plan to bring Justin in for a cameo as his younger brother is a very popular idea. They are just trying to work it all out at the moment," says a network insider.

As you might expect, this idea is going over very well with those on the series.

"The cast members are very excited about the prospect of working with him - especially Lea Michele, so it has everybody's seal of approval. They just need to work it all out now. The idea is that he will be a substitute teacher and join the glee club for a week."

Cue screams of excitement in 3... 2... 1...