19 Celebrity Mistresses Who Became the Main Squeeze

Alicia Keys and rapper/producer Swizz Beatz began dating in 2008, while he was still married to singer Mashonda — who had just given birth to their son, Kasseem Dean Jr. Both Swizz and Alicia have maintained that his relationship was already ending when they struck up a romance, but his ex has a different story. Alas, Alicia and Swizz tied the knot in 2010 and have two sons together, Egypt and Genesis.