Machine Gun Kelly Reveals He 'Lost $50,000 on the Blackjack Table' in Las Vegas as He Performs with Jelly Roll

What happens in Vegas doesn't always stay in one's bank account, Machine Gun Kelly has learned.

The 34-year-old musician performed with Jelly Roll during the country singer's opening set for Morgan Wallen at Allegiant Stadium in Las Vegas on Thursday. Aug. 8 and revealed he experienced a major gambling loss during his time in Sin City.

"I lost $50,000 on the blackjack table tonight," MGK told the crowd with a laugh, per fan-captured footage, before jokingly asking for help: "I need you all to go stream 'Lonely Road' and make that money back."

The rapper/rocker joined Jelly, 39, at the show to perform "Lonely Road," the pair's new collaboration, as well as a duet version of the CMA Award winner's hit "Need a Favor."

"I love you all. Thank you Jelly for having me," Machine Gun Kelly, whose real name is Colson Baker, said on stage. "Peace out cowboys and cowgirls."

Jelly added, "Make some noise for one of my best friends, MGK. Thank you for coming, baby. I love you, Bubba. I love you so much, Bubba."

Both artists also recently sang both songs, plus MGK's "My Ex's Best Friend," at the Good Mourning star's annual "MGK Day" celebratory concert in his Cleveland hometown on Aug. 11. Additional special guests during the show included Tee Grizzley and Travis Barker.

"Lonely Road," which interpolates John Denver's classic "Take Me Home, Country Roads," was released on July 26, and the song has since reached No. 33 on the Billboard Hot 100.

Upon the song's release, MGK shared a photo of the duet partners to Instagram alongside a heartfelt caption. "jelly you are living breathing badass and a kindred soul who has shown me the path of redemption and what it looks like to believe in yourself against all odds," he wrote.

The "Papercuts" artist continued, "from us beefing 12 years ago, and fast forward to us putting out what i believe will be the biggest hit of our careers yet im proud to call you my brother and life feels better knowing you got my back."

Earlier this month, MGK spoke to Jelly's wife, Bunnie Xo, on her Dumb Blonde podcast and revealed he's "completely sober from everything" at the moment.

"I don't drink anymore. I haven't drank since last August," he said. "That was my first time I ever went to rehab."

Bunnie then recalled challenging MGK and Jelly to a drinking contest one night after filming the "Lonely Road" music video — without knowing he was sober. "It just kills me because I just know I would have f---ing drank that man under the table," he said.