Harmonizers? That pounding is your chest is, in fact, a metaphorical "Sledgehammer" hitting you with this very important 5H news: Fifth Harmony are going on tour!

This is NOT a drill: 5H have teamed up with MTV for The Reflection Tour, which gives you, die-hard Harmonizers, a chance to sing along to your favorite 5H songs like a true "Bo$$," with the girls, in person, in your hometown.

Camila, Normani, Ally, Dinah and Lauren will be hitting the road beginning Feb. 27 in San Francisco -- which should give you more than enough time to learn every single song on the Reflection album, which drops Feb. 3 -- and will travel to major cities all over the U.S. before wrapping up in Philadelphia on March 27.

But of course, Fifth Harmony's bringing some friends along for the ride with Jacob Whitesides, Jasmine V, and Mahogany Lox slated as opening acts.

A special fan club pre-sale goes live Wednesday, Jan. 14, general pre-sale follows Thursday, Jan. 15, and public ticket sales starts Friday, Jan. 16 at 10 a.m. local time.

Tickets will be available at www.FifthHarmonyOfficial.com and exclusive meet-and-greet packages can be purchased www.VipNation.com.

Here's a full list of Fifth Harmony's tour dates:

2/27 - San Francisco, CA @ The Regency

2/28 - San Diego, CA @ House of Blues

3/1 - Los Angeles, CA @ Club Nokia

3/4 - Dallas, TX @ South Side Music Hall

3/5 - Houston, TX @ Warehouse Live

3/8 - Tampa, FL @ Busch Gardens

3/9 - Atlanta, GA @ Buckhead Theatre

3/10 - Charlotte, NC @ Amos’ South End

3/11 - Norfolk, VA @ The Norva

3/12 - Richmond, VA @ The National

3/14 - Chicago, IL @ The Vic

3/16 - Detroit, MI @ Royal Oak Music Hall

3/17 - Toronto, ON @ Sound Academy

3/18 - Youngstown, OH @ Stambaugh Auditorium

3/20 - Red Bank, NJ @ Count Basie

3/21 - Albany, NY @ Upstate Concert Hall

3/22 - Mashantucket, CT @ The Grand Theater at Foxwoods Resort Casino

3/23 - New York, NY @ Best Buy Theater

3/26 - Bethlehem, PA @ Sands

3/27 - Philadelphia, PA @ Keswick Theatre