To promote their new single, the Fifth Harmony attended on the VH1's Big Morning Buzz Hosted By Nick Lachey on December 16, 2014.
On stage, the quintet performed their new song "Sledgehammer" live. The song will be included on their debut album, "Reflection", which hits the stores on January 26.
The material also features the single "Bo$$" (BOSS) and the promotional track "Them Girls Be Like".
Check out the performance below: