Grammys by the numbers

Grammy Awards: By the numbers 01:25

And now a look at tonight's Grammys (on CBS) . . . by the numbers.

This is the 56th Grammy ceremony, with awards in 82 categories.

Jay Z has the most nominations tonight -- nine.

Justin Timberlake has seven, including Best Pop Vocal Album for "The 20/20 Experience," which was also the year's best-SELLING album.

Tonight's youngest contender is Lorde, the 17-year old New Zealand-born singer, with four nominations, including Record of the Year for her song, "Royals."

Led Zeppelin is up for a Grammy for their performance of the song "Kashmir," on the album, "Celebration Day."

They released their first recorded version of that song 40 years ago.

And lest you think the Grammys are just a young person's game, Tony Bennett is nominated once again tonight . . . 52 years after winning his first Grammy.

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The Irish rock band U2 (from left: Bono, The Edge, Larry Mullen and Adam Clayton) holds the record for most Grammy Awards won by a group - 22. ROBYN BECK/AFP/Getty Images

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