Happy new hair.

TRY
Tres Chic Salon
What: Dreamlengths hair extensions creator Tutu Longe opens a space dedicated to clip- and sew-in services ($120-$450).
Why: Growing it out is a nightmare.
When: Mon.-Fri., 10 a.m.-6 p.m.; Sat., 8 a.m.-4 p.m.; Sun., by appt. (After-hours weekday appointments by request.)
Where: 940 Canton St., Roswell (770-640-0040).

GROOVE
Callaghan’s Birthday Show
What: Feel-good tunes from the talented Londoner-turned-Atlantan and her fellow singer/songwriter friends, Eric Brace (Last Train Home) and Peter Cooper.
Why: “Best Year” induces instant optimism.
When: Sat., 8 p.m.
Where: Eddie’s Attic, 515b N. McDonough St., Decatur (404-377-4976). Tickets ($15) at ticketalternative.com or at the door ($18).

SWEAT
The Bar Fitness
What: B-FIT’s new indoor boot camp ($99) combines high-intensity cardio, partner drills, plyometrics, kettlebells, and more for body transformation in four weeks.
Why: Try it free before you commit.
When: Free class, Sat., 10 a.m. Boot camp begins Jan. 7 and takes place Mon., Wed. & Fri., 6 a.m.
Where: 908 Bowen St. NW, Westside (678-264-8025).

NOSH
P’cheen’s Winter Menu
What: After making the rounds at his other spots, chef Alex Friedman returns with comfort food such as the salmon noodle bowl, crab cake pasta, and tom ka gai soup (poached chicken, coconut milk broth, mushrooms, scallions, and lime).
Why: Baby, it’s cold outside.
When: Mon.-Thurs., 5-10:30 p.m.; Fri. & Sat., 5 p.m.-midnight; Sun., noon-midnight.
Where: 701-5 Highland Ave. NE, Old Fourth Ward (404-529-8800).

Photo: The Power of Forever Photography / Getty Images