Paul McCartney has sued Sony/ATV Music Publishing to assert his copyright ownership of a number of the Beatles’ songs, TMZ reports and Pitchfork can confirm. According to documents obtained by TMZ, McCartney claims that he will reacquire the songs in 2018, but Sony has reportedly not confirmed that it will transfer the song copyrights without a legal dispute. The copyrights of the songs in question were once held by Michael Jackson before his estate sold its stake in Sony/ATV last year.

In a statement to Pitchfork, a spokesperson for Paul McCartney said: