No. 2: Nicki Minaj

Nicki Minaj might be the most creative performer in hip-hop today, with a malleable style that can work with a wide range of artists. She’s already collaborated with David Guetta, Rick Ross, Christina Aguilera, Willow, the Lonely Island and pretty much everyone in between. Bieber and Minaj met up briefly at last year’s BET Awards, but if they were to actually spend time together in a studio, the possibilities would be endless.