You may not be familiar with the name Priscilla Renea, but you’ve definitely heard some of the songs she’s penned. The singer-songwriter cowrote Rihanna’s “California King Bed,” Pitbull and Kesha’s “Timber,” Fifth Harmony’s “Worth It,” and Selena Gomez’s “Who Says” (among others). She’s also dabbled as a solo artist; she was signed to Capitol Records at 18-years-old in 2009, after gaining millions of views on YouTube, and even released her own debut album, Jukebox, that same year.