Last year's winner for Record of the Year and Song of the Year was "Rolling in the Deep" by Adele.
The two categories often go hand-in-hand, but not always. The awards have gone to the same song 12 times in the last 20 years.
For the most part, the awards for Record and Song favor adult contemporary tracks -- including recent winners "Need You Now" (Lady Antebellum), "Rehab" (Amy Winehouse), "Don't Know Why" (Norah Jones) -- as well as anthemic rock song -- like U2's "Beautiful Day" and "Walk On," Coldplay's "Clocks," and Kings of Leon's "Use Somebody."
Though hip-hop has become more popular in the last 20 years, no hip-hop song has won either category, though several have been nominated.
Among this year's contenders are best-selling hits "Call Me Maybe" (Carly Rae Jepsen), "Somebody That I Used to Know" (Gotye), and "We Are Young" (Fun, featuring Janelle Monae).
Katy Perry could make it into the race wither either "Part of Me" or "Wide Awake."
Rihanna could contend as many as three times: for her own "Where Have You Been" as well as her collaborations with Coldplay ("Princess of China") and Drake ("Take Care").
Mumford & Sons were nominated for Record and Song last year for "The Cave" and could compete again for "I Will Wait."
Frequent nominees Jay-Z and Kanye West, who have more than 30 Grammys between them, could earn a bid for their collaboration "Ni**as in Paris."