Sledgehammer

The second single from Reflection finds a loved-up Fifth Harmony singing about being turned on by their man. "It's cool because we've never released a single that's about love - a happy, cute love song," Fifth Harmony's Camila Cabello told Billboard magazine. "It's about being with the person you like and feeling the beating of the heartbeat that beats like a sledgehammer."

The song was written by Meghan Trainor with Eric Frederic and Sean Douglas. Before becoming a successful recording artist, the "All About That Bass" star was a songwriter for Big Yellow Dog. Trainor's early songwriting credits for the company included co-penning "DJ Tonight" and "I Like the Sound of That" for Rascal Flatts' Rewind album. Trainor recalled to OfficialCharts.com: "As a songwriter, that was the sort of stuff I was writing [before 'All About That Bass']. Imagine eight Sledgehammer songs – that's what I had – and when I told my parents All About That Bass was the song the label wanted to go with, they were like, 'Huh? Really? That song?' I was a new star on Epic Records and I loved those songs, so I asked if we could give it to the girls."

The video features the 5H ladies wearing matching off-white outfits, pulling out their best co-ordinated dance moves and pouting from suspended swings. It also includes a silhouetted dude with, yep, a sledgehammer. The clip was directed and choreographed by Fatima Robinson, who also helmed the visual for "Bo$$."