you well, it's really easy to make music that you enjoy and are excited about. It's really exciting that she's featured on this record and hopefully the world loves it, 'cause I think it's time that they all get to know who Emily Warren is," Pall explained. Composition "Side Effects" is an upbeat, disco-tinged funky house and house-pop song. It features a "slapping bassline and soft lead melody on the piano and drums" reminiscent of Bruno Mars, and sees the duo "take on a more club-ready sound than recent dance-pop hits" rather than "relying on the pop-perfect minimalism of past smashes". It has been described as a "ridiculously catchy summer anthem". Lyrically, the song is about "a self-degrading mantra", with lyrics describing being awake at 4 am with everything closed and nowhere to go. Music video Background The song's release was accompanied by a lyric video, but the duo promised that an official music video with a cameo by a "recognizable actress" is coming soon. "The music video, which we just filmed our part — they're filming another part in Miami — has a really amazing surprise lead actress in it," they teased on On Air with Ryan Seacrest, revealing "she's on a very popular show right now." The music video, directed by Matthew Dillon Cohen and shot at Shore Club South Beach hotel in Miami, was released on August 21, 2018. It stars American actress Camila Mendes, who is better known for her role of Veronica Lodge in television series Riverdale. Mendes wrote on Instagram alongside a teaser image before the visual's release: "It would appear that dancing in other people's music videos has become one of my favorite pastimes." Synopsis The video begins with Mendes' character, Riley, a hotel employee, receiving the news that she has to work throughout the weekend. Disgruntled, she decides to make the most of her unfortunate situation, taking off her maid uniform and throws a solo pool party, as she dances around the hotel on her night shift. She then encounters a security guard who refuses to be moved by her dance moves. The video then shifts to showing various events going on in different rooms in the hotel, with scenes featuring cameos by Pall and Taggart. Towards the end, Riley jumps into the pool, accompanied by balloons and fireworks. Live performances On July 28, 2018, the Chainsmokers made a live performance debut