American Idol star Carrie Underwood's marriage 'on the rocks' due to her 'workaholic' lifestyle

Carrie Underwood might be the latest celebrity to be heading for divorce .

The American Idol star played a concert in Hawaii last month and brought her husband Mike Fisher along for a reported romantic work trip. But according to a source, the trip to paradise wasn't exactly that.

Though Carrie posted photos with Mike on Instagram and was smiling in every one, it appeared that Carrie paid more attention to her show and band than her NFL husband. Apparently, Carrie had Mike feeling "left out."

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"It was supposed to be a vacation in paradise but she was either working or with her band and Mike felt left out. Sure, she posed for snaps with him, but she was consumed with work," a source told Globe Magazine .

The Before He Cheats singer is also resuming her Vegas residency later this month. Mike and their two children - Isaiah, nine, and Jacob, five - are set to join her in Sin City.

"Mike will go with her but more as kid-sitter than lover. He’s longing for some alone time with his wife, but there isn’t much opportunity for it. She always promises to make more time for him but then before long she’s back to making life all about work, or the kids, with Mike feeling stuck in last place. Her friends worry that she’s doing their marriage a disservice by not carving out enough time for romance,” the source added.

Carrie and Mike started dating in 2008 after she met the hockey player at one of her concerts. Mike proposed in 2009 and the two were married a year later at the Ritz-Carlton Lodge in Greensboro, Georgia.

It was recently announced that Carrie will replace Katy Perry as a judge on American Idol this upcoming season. Carrie previously won the show on season four in 2005.

About the new gig and becoming the first previous contestant to judge the show, Carrie said: "I'm proud of everything that I was able to accomplish on the show, and I'm so proud of everything that I've accomplished since."

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