We're not sure what it highlights more - the homogeny of today's chart music or the immaculate talent of DJ Earworm. We'd wager it's the latter. It's SEAMLESS. Featuring Bruno Mars, The Weeknd, Ed Sheeran, Taylor Swift, Justin Bieber, Nicki Minaj, Adele, Drake and anyone else you'd care to think of who crept into your ear and took up residency for days.