Also on the March 4 "Tonight Show," which airs on NBC at 11:35 PM ET, is guest Chelsea Handler.
On the death of "Glee" co-star Monteith, who died July 13, 2013, from a "mixed drug toxicity" of heroin and alcohol at Vancouver's Fairmont Pacific Rim Hotel, she told Groff, "My relationship with Cory made me feel like I could reach for the stars and more… I somehow feel the insane love Cory and I had for each other morphed in to this strength that I have right now. There's just something about knowing he's watching everything I'm doing and feeling like I have to do everything now not just for me but for him. I also have a safety net below me — if I fall or if it's too much, my friends and family will be there to catch me."
For Michele's album on iTunes, click here.
Listen to "If You Say So" below: