Pitbull's Billboard chart-topper "Timber" featuring Ke$ha may be getting him in a bit of trouble.

The creators of the 1978 song "San Francisco Bay" Lee Oskar, Keri Oskar and Greg Errico, are taking the Miami rapper to court to the tune of $3 million for borrowing the song's harmonica vibe for the hit song.

According to the NY Daily News, The suit states that "'Timber's' harmonica player Paul Harrington was instructed to emulate Oskar's performance on "San Francisco Bay" and the infringing record makes "copious use" of the original melody and harmonica riff."

Listen to "Timber" above and then listen to "San Francisco Bay" next in the gallery. Do you think they have a case here? Sound off below.