Drake has finally confirmed his 2016 song ‘Too Good’ was inspired by his ex-girlfriend Serena Williams. The 37-year-old rapper was previously romantically linked to the tennis superstar from around 2010 to 2015, and he has now told how his and Rihanna’s 2016 tune is about him and the 42-year-old star. Drake has released some archival footage, and in one video he is seen chatting to his mother Sandi Graham in a recording studio, when he confirms ‘Too Good’ is about Serena. When Sandi asks Drake about referring to his past romances in tunes, he said: “I get heavy on a couple joints, but this is …