Plans for the Grammys’ blowout 50th-anniversary show are back in full swing, now that the striking writers have agreed not to picket the Feb. 10 broadcast.

We can tell you some of what those plans are.

According to a well-placed source, the big “surprise” number will be a duet by Beyoncé and Tina Turner, who has only rarely performed since 2000.

(I suppose the dance floor will be filling in for Ike Turner’s grave.)
A Grammys rep told us: “We haven’t released any presenters or performers, and until we do, nothing is confirmed.”

The Writers Guild has yet to grant the Grammys a formal waiver, although Recording Academy President Neil Portnow is on record as saying the ceremony would proceed as planned.