AceShowbiz -

Demi Lovato was a musical guest during Tracy Morgan's return to "Saturday Night Live". She delivered songs from her new album "Confident", singing a medley of the title track and "Cool for the Summer" before later performing "Stone Cold".

The Roots' drummer Questlove applauded her performances on Twitter, "all due respect @ddlovato. #SNL." She replied, "Thank you so much @questlove." Her boyfriend Wilmer Valderrama gushed, "Just watched my @ddlovato completely KILL on @nbcsnl from my plane seat!" She responded, "Love you so much @WValderrama... You were the only things missing tonight... More to come."

Earlier before "SNL", Demi got a sweet message from fellow singers. "Had to hit up @ddlovato last night and text her a bunch of 'yaaaas'es & 'werrrrrk's because of these vocals on #confident! you diiiid that!" Ariana Grande wrote, to which Demi replied, "It always means a lot coming from you girly!!! @ArianaGrande [Love] you tons and I can't wait for #FOCUS!!!" as she referred to Ariana's upcoming single.

Ariana also praised another fellow female singer Selena Gomez who's rolling out a new album as well. "And while we're on the topic of new music I have to mention #REVIVAL is so effing good @selenagomez!! I'm in love," she wrote before adding, "I love nothing more than seeing young women doing what they love & kicking ass at it." Selena responded with "AMEN."

Kelly Clarkson also offered her love for the two female singers, "My girl @ddlovato has her new album Confident out! Current favorite is #confident :)" she tweeted. "Okay there is so much new music out right now! @selenagomez great job on your new album! I love #sober."