WASHINGTON — Forget all those inaugural concerts. The most pressing musical issue in the nation's capital is whether a stone-face senator from Oklahoma will hit the high notes in "Rocket Man" to pay off a college football bet.

Republican Sen. Tom Coburn is slated to serenade Democratic Sen. Bill Nelson of Florida with his very own rendition of Elton John's 1970s classic this afternoon.

Coburn owes Nelson because the Florida Gators defeated the Oklahoma Sooners 24-14 in last week's BCS title game. Nelson chose "Rocket Man" because he is a former astronaut who flew on the space shuttle Columbia in the 1980s.

If Oklahoma had won, Nelson would have had to sing the title song from the musical "Oklahoma!" It also happens to be the official state song.

Coburn spokesman John Hart said his boss won't wear a leisure suit for the performance but would be ready. He acknowledged the vocal range for "Rocket Man" is a "bit more expansive" than for the song Nelson would've had to sing.

Coburn, a physician, is best known as a budget hawk who has given Senate Democrats headaches for years by using procedural tactics to block new spending measures.

Nelson spokesman Dan McLaughlin said the senator "is looking forward to settling the wager in good spirit and with a sense of humor."