Grammys by the numbers

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.

For more info:

• The 56th Grammy Awards Show (CBS.com) | Download the app for iPhone, iPad and Android
• grammy.com (Recording Academy)
• 2014 Grammy nominees
• Complete CBSNews.com coverage of the 56th Grammy Awards
• View pictures and highlights from the show
• Full list of Grammys 2014 winners