5 Seconds of Summer continued their breakout year with a killer performance at the 2014 Billboard Music Awards. The Las Vegas crowd and viewers around the country got a dose of their new school rock sound via the catchy love song "She Looks So Perfect," brought to life at the MGM Grand Garden Arena.
The quartet of boys took the stage brandishing their guitars, dressed to impress in sleeveless tees and skinny jeans. Frontman Luke Hemmings exclaimed, "She looks so perfect standing there/In my American Apparel underwear," giving a compelling advertisement to the clothing chain. Although it was one of the lesser-known songs performed at the show, "She Looks So Perfect"'s infectious chorus made it a slick crowd-pleaser.