The 27-year-old actress, who has sparked concerns after displaying erratic behaviour in recent months, regularly tweets about the rapper but claims he is the one obsessed with her, reported Contactmusic.
"Drake stalks me but isn't following me on Twitter. He's ugly and I won't stop making fun of his ugly face! I laugh at every photo I see of him," Bynes wrote on Twitter.
She also tweeted a photograph of Drake and wrote, "He's ugly."
The 'She's The Man' star, who was charged with evidence tampering, reckless endangerment and marijuana possession after being arrested at her apartment in New York City on May 23, posted the messages about Drake just one day after she appeared in court.