I don't even know if thats the actual line...I know the song definitely has the "gotta check into rehab" part but not sure about the "say I" part...I thought it was a Fergie lyric and that I had the song on my Ipod then I couldn't find it. When I search that phrase all I get is Rihanna's song "Rehab" and its NOT that one (b/c I love that song too!). I swear it's Fergie but whether you can confirm or deny that, please just help me with this damn earworm!