Taylor Swift made the full switch from country to pop in 2014, and now the 1989 singer is adding a bit of rock 'n' roll to her résumé. The Nashville superstar just announced the addition of rockers HAIM to her forthcoming world tour as her opener.

It is no secret Swift and HAIM are best buds. They have taken some fun group pictures in the past couple weeks, including one that -- gasp! -- finally revealed Swift's belly button.

Observe:

A photo posted by Taylor Swift (@taylorswift) on Jan 23, 2015 at 5:20pm PST

But hanging out and touring together are two different animals. Any artist will tell you that they got sick of their bandmates by the time the train finally rolled into the final tour stop. Perhaps the girls should take the recent words of Limp Bizkit guitarist Wes Borland to heart.

"Once you get off the road with somebody in a band, you don't really wanna see them for a while, but that's true with any band," he told Stereogum this weekend. "I think that's a really common thing. You're with someone every single day, and you wake up and they're next to you across the hallway, and you're having breakfast, lunch and dinner and coffee with them, you need a break."

With that in mind, here are the dates Swift and HAIM will be partying together, via Billboard:

07/10 - East Rutherford, NJ @ MetLife Stadium
07/11 - East Rutherford, NJ @ MetLife Stadium
07/13 - Washington, DC @ Nationals Park
07/14 - Washington, D.C. @ Nationals Park
07/18 - Chicago, IL @ Soldier Field
07/19 - Chicago, IL @ Soldier Field
07/24 - Foxborough, MA @ Gillette Stadium
07/25 - Foxborough, MA @ Gillette Stadium
08/21 - Los Angeles, CA @ Staples Center
08/22 - Los Angeles, CA @ Staples Center
08/24 - Los Angeles, CA @ Staples Center
08/25 - Los Angeles, CA @ Staples Center
08/26 - Los Angeles, CA @ Staples Center
09/25 - Nashville, TN @ Bridgestone Arena
09/26 - Nashville, TN @ Bridgestone Arena
09/28 - St. Louis, MO @ Scottrade Center
09/29 - St. Louis, MO @ Scottrade Center

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