Ever since Sam Smith acknowledged that his hit track Stay With Me doeshave coincidental similarities to Tom Petty's 1989 'I Won't Back Down', we realised this is totally not the first time it's happened.

Having done some investigating, there are way more tracks than you realise that sound scarily similar, whether it was on purpose or not!

Check out some of them below...

Kelly Clarkson - Already Gone vs. Beyoncé - Halo

One Direction - Best Song Ever vs. The Who - Baba O'Riley

Katy Perry - California Gurls vs. Kesha - Tik Tok

Robin Thicke - Blurred Lines vs. Marvin Gaye - Got To Give It Up

Delta Goodrem - Sitting On Top Of The World vs. Arcade Fire - Rebellion

Bruno Mars - Locked Out Of Heaven vs. The Police - Roxanne

Coldplay - Clocks vs. David Guetta - When Love Takes Over

Lady Gaga - Born This Way vs. Madonna - Express Yourself

Calvin Harris - I'm Not Alone vs. Chris Brown - Yeah 3x

Eminem -My Faultvs. Sean Paul - Like Glue