He's seemed fine and totally ready to move on since his divorce from Miranda Lambert earlier this summer, but a new report suggests Blake Shelton could be on a downward spiral now that he's single.  

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According to In Touch, Shelton had a wild weekend recently while in Cancun celebrating a friend's bachelor party-but his antics may be worrying those around him.  

"He was doing shots of tequila nonstop and partied with strippers all weekend," a source told the magazine. "Things got more and more wild each day he was there." 

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Shelton also reportedly went back to his room with two women after a night of partying at a strip club. 

"He was taking turns kissing them while he walked through the lobby carrying two fresh bottles of tequila," a witness claimed. "Then they went up to his suite, got into the hot tub on the balcony and did tequila shots. Blake was kissing both girls there before they went into the bedroom for the night." 

However, the behavior has caused some of his friends and colleagues to worry-especially with how much it has increased since he and Lambert called it quits earlier this summer. 

"She kept Blake grounded. She was his voice of reason. But now that he's single, he's free-falling to a very bad place," a source said. "Of course, he's always liked to drink a lot, but now his alcohol consumption has skyrocketed." 

However, those concerned aren't sitting back and figuring him to be a lost cause and are encouraging him to seek help, though for now, their attempts have been unsuccessful. 

"They want him to take some time out and spend it in rehab," sources said. "But Blake insists throwing himself into the new season of The Voice is the best distraction and all he needs."  

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Tags: Blake Shelton Miranda Lambert