A new player inserted itself into the ad war between Mitt Romney and President Obama: BMG Rights Management.

After the Obama campaign released a critical ad featuring Mr. Romney singing “America the Beautiful” set against headlines with outsourcing claims, the Romney campaign returned fire with a Web video of its own, mocking Mr. Obama’s rendition of Al Green’s “Let’s Stay Together.”

Yet hours after the Romney ad hit YouTube, it was taken down with a message from the site:

“”Political Payoffs And…”

This video is no longer available due to a copyright claim by BMG_Rights_Management.

The ad originally featured audio of Mr. Obama singing Al Green’s 1972 hit at a January fund-raising event, juxtaposing lyrics from the song with claims of favoritism to lobbyists and donors.