He's baaaaack!

John Mayer took the stage for a surprise performance at the Livingston Town Proper benefit in Montana. The event was to raise money for the firefighters that saved homes in the area from a summer wildfire, including the Grammy winner's.

This marks the first time the "Gravity" singer has sung live on stage following throat surgery two years ago for granuloma.

The musician was in L.A getting the operation at the time of the disaster, and he vowed to give back to those who helped to keep his home safe. The event raised more than $100,000 and also featured a performance by the Zach Brown Band.

Mr. Mayer seems like a changed man these days! New love Katy Perry must have him feeling all warm and fuzzy!

Katy Perry and John Mayer had a dinner date at Osteria Mozza in Hollywood on Friday night, and the pop star needed a little assistance from her beau when she walked out of the eatery! John held on tight to his lady love's hand, and given how comfortable they've gotten with one another in public, it looks like this relationship is better than ever.

The couple were first linked in June of 2012, and though they reportedly split in August, they were back together later that month and have been going strong since then. In November the lovebirds took a trip to Santa Barbara, and that month they also posed on the red carpet at the opening night of A Christmas Story on Broadway. She's definitely a catch! Glad to see John came to his senses...

We can almost hear John Mayer saying ho, ho, ho!

The 35-year-old crooner struck a sultry pose for girlfriend Katy Perry, 28, who snapped this photo while the two were spending time with her family in Santa Barbara.

Hard to believe the twosome have already lasted this long. Perry's divorce from ex hubby Russell Brand was finalized over the summer, so the Fireworks songstress is free and clear to move on.

Can she get John Mayer to actually settle down? We'll be watching to find out!

Katy Perry and John Mayer took a romantic getaway to Santa Barbara earlier this week, and the couple were snapped taking a tour of the Old Mission, which was founded by the Franciscan Friar Fermin de Lasuen in 1786.

Katy seemed quite excited to show her beau around her hometown, and a photographer on the scene tells X17online exclusively, "When they got to the mission, they were holding hands and laughing and when they visited the balcony of the building, they kissed a few times. It was really romantic."

"They were SO in love," our photog added. "They were all over each other the whole time, and this was a total lovers' getaway."

Think John will gift Katy with a hefty sparkler this Christmas? That would certainly help her forget about ex-husband Russell Brand!

After lunching at ABC Kitchen in New York City on Tuesday afternoon, John Mayer and Katy Perry continued to celebrate his 35th birthday with a fancy dinner out in the Big Apple.

While her romance with Mr. Mayer seems to be thriving, her ex-boyfriend Travie McCoy has opened up about their two-year relationship and what caused them to break up in 2009.

In a new Behind the Music special, McCoy admits he was madly in love with the pop star, but his drug use was ultimately what split them up. "We [got] along better than any other girl I've ever hung out with in my life," he says. "That was the beginning of a really, really awesome time for me ... When I was around her I felt really at ease and comfortable with myself. ... It was the most amazing thing ever." However, the honeymoon period didn't last forever, and when Perry caught on to his substance problems, it wasn't pretty.

"She wasn't stupid. She knew when I was f*cked up," he says. "I chose drugs over our relationship. As things started taking off for her, the more I started to doubt my role in her life. There were times I felt like a stepping ladder."

So how did she end things? Over e-mail!!! McCoy says, "It started off with 'I love you so much I hate to do this.' ... Someone that you are ready to spend the rest of your life with sends you a f*cking email just sh*tting on your whole parade. It destroyed me." Um, yikes!

John Mayer and Katy Perry are two rock stars in love ... and we can't get enough of it!

The sexy twosome hit up Madeo in LA post MTV VMA's for a late night bite. Looks like these two are going long term ... and by long term, we mean more than a week.

No doubt, John must think Katy's body is a wonderland. We totally get it.

John Mayer and girlfriend Katy Perry have to be one of the sexiest couples around.

The rock 'n roll twosome left The Little Door restaurant in LA after sharing a romantic dinner together. Too bad the "Fireworks" songstress was acting shy and covering that beautiful face with her hair.

Looks like Katy is going to be John's "Queen of California" ... at least for another week. Sounds royally hot!

Katy Perry and John Mayer's brief affair is over, reports claim.

The couple started dating earlier this summer and have been spotted together at the Chateau Marmont, a private party and a couple of dinner outings.

Perry, 27, is fresh off her divorce from Russell Brand, while Mayer, 34, has been out of the spotlight fo ra bit, since dating his last high-profile girlfriend, Jennifer Aniston.

So who's next for Katy and who's John's next conquest? Click through to tell us who YOU think the next victims are ...