Left and Right Charlie Puth Jung Kook BTS Reaction with Jacqueline Jax. This is clearly a hit pop song. It has everything you need from a summer hit. It's fun and light with uplifting tempos and catchy lyrics. There's isn't a fan of either one of these artists who won't adore what they have created and delivered. Charlie Puth has delivered amazing vocals with catchy rhythms and energy. Jung Kook from BTS has brought a silky smooth vocal that compliments Puth with charming elements that melt together to give us something we can listen to on repeat.