TMZ — Demi Lovato had no guilt over 86ing Adam Lambert from her upcoming world tour, hopping onstage with Nick Jonas for a private concert Monday night in New York City. The tour's still 8 months away ... but the two were already warmed up for… more info

TMZ — ON TODAY'S SHOW Khloe Gives Lamar Odom an Ultimatum Jimmy Fallon Suffers Yet Another Injury Chris Brown & His Baby Mama are Finally Working Together Adam Lambert Gets Dumped for Nick Jonas SKYPE US TMZTVSHOW TWEET US Tweet to @TMZLIVE more info

TMZ — Adam Lambert is cool as a cucumber on the outside, saying he's got no beef with Demi Lovato after she dumped him from her world tour for Nick Jonas.  Lambert took to Twitter Saturday, saying, "No beef tween Demi & Nick and me. Biz… more info

Perez Hilton — It's been a controversial 24 hours in pop music! Last night, we ran a story on the decision made by Demi Lovato to replace Adam Lambert on her concert tour with Nick Jonas, and sources indicated Lambert was MAD about the whole deal! Related: Demi Lov... more info

TMZ — Demi Lovato dropped Adam Lambert from her upcoming world-tour for Nick Jonas! Hear Harvey's take.  more info

TMZ — Nick Jonas was mum over Demi Lovato's decision to ax Adam Lambert on her tour and bring him along for the ride instead. TMZ broke the story, Adam and Demi had essentially struck a deal that he'd tour with her, but we're told Demi's manager -- who… ... more info

Perez Hilton — This is definitely NOT cool for the summer! According to sources, Adam Lambert was supposed to open for Demi Lovato on her soon-to-be-announced upcoming world tour. We are told that the songstress and the Ghost Town artist already hashed out details ... more info

TMZ — Demi Lovato unceremoniously dumped Adam Lambert as the opening act for her world tour, and is replacing him with Nick Jonas, TMZ has learned ... and Adam is real upset. Our sources say after Demi's people locked in Adam to join her on tour. It… ... more info

Time — The singer performs with Alan Carr on the comedian’s show 'Chatty Man.' more info

Reuters — LOS ANGELES (Reuters) - Veteran singer-songwriter James Taylor raced ahead of pop singers Adam Lambert and Hilary Duff to score his first No. 1 album on the weekly U.S. Billboard 200 chart on Wednesday. more info