Katy Perry & John Mayer Party Together Before New Year's Eve 2015

The 31-year-old pop star and the 38-year-old crooner have been dating on and off since 2012

Looks like Katy Perry and John Mayer are celebrating the New Year's holiday early!

The 31-year-old pop star and the 38-year-old crooner were spotted leaving The Nice Guy restaurant and lounge in West Hollywood early on Thursday. They entered the same car after exiting the venue. A source told E! News the two were there with friends.

Perry sported a white, short sleeve maxi dress with a colorful print while Mayer bundled up in a black wool coat.

The two have been dating on and off since 2012.

Perry and Mayer last sparked speculation that they are back on several months ago, when they attended Girls stars Allison Williams' wedding. They have not commented on the status of their relationship.

It is unclear if the two will spend New Year's Eve together. Perry is set to perform on New Year's Eve at a private concert at the Wynn Las Vegas hotel, according to Maxim, while the supergroup Dead & Company, which includes Mayer and surviving members of the Grateful Dead, has a concert at The Forum in Los Angeles that night. They had also performed there on Wednesday night, hours before Mayer and Perry were photographed together.

—Reporting by Baker Machado