American Idol is going gaga!

Lady Gaga will lend her talents to mentor the show's final four contestants -- Lauren Alaina, Scotty McCreery, Haley Reinhart and James Durbin -- on Wednesday's performance round.

Gaga, 24, will guide the singers as they select and perform songs from the songbook of producing duo Jerry Leiber and Mike Stoller.

While the Top 4 Idols won't be singing Gaga's tunes, one singer is sure to mesh well with her.

Reinhart, 20, belted out Gaga's unreleased single, "You and I," on the May 4 broadcast. According to Reinhart, she chatted with the singer before selecting the track, which Gaga gave her blessing to Reinhart to sing.

Ahead of Wednesday's performance round, tell Us: Which Idol will benefit most from Lady Gaga's mentorship?

By Allison Corneau for UsMagazine.com. For more Channel Surfing, click here.

Poll

Which Idol Will Benefit Most From Lady Gaga's Mentorship?

Lauren Alaina
Scotty McCreery
Haley Reinhart
James Durbin
1613 Total Votes
Which Idol Will Benefit Most From Lady Gaga's Mentorship?