Our second round of the 2010 Song of the Year Tournament is underway, and the results of Round 1 were surprising to say the least. We saw dedicated fans come out in droves to support their favorite artists' songs, as well as unexpected wins, shocking upsets, and close races. Here's a recap of Round 1 for those of you who were interested!

Number of votes cast in Round 1: 18,066
Most viewed/voted on match up: Justin Bieber's "Baby" vs. Trey Songz' "Bottoms Up," currently standing at nearly 16,000 views and 1001 votes

Biggest Upset: Jay-Z featuring Alicia Keys' "Empire State of Mind" losing to Train's "Hey Soul Sister"

Closest match ups:

• Ke$ha's "Your Love is My Drug" (308 votes) vs. B.o.B.'s "Nothin' on You" (307 votes) -- 1 point differential
• Usher's "DJ Got Us Fallin' in Love" (299 votes) vs. Taio Cruz's "Dynamite" (296 votes) -- 3 vote differential
• Taio Cruz's "Break Your Heart" (266 votes) vs. Jason Derulo's "Ridin' Solo" (260 votes) -- 6 vote differential
• Taylor Swift's "You Belong with Me" (278 votes) vs. Jason Derulo's "In My Head" (266 votes) -- 12 vote differential
• Train's "Hey Soul Sister" (285 votes) vs. Jay-Z's "Empire State of Mind" (271 votes) -- 14 vote differential
• Jay Sean's Down" (268) vs. Drake's "Find Your Love" (248) -- 20 vote differential
• Trey Songz' "Bottoms Up" (509 votes) vs. Justin Bieber's "Baby" (488 votes) -- 21 vote differential

Biggest Win Margins:

• B.o.B.'s "Airplanes" beat Lady Antebellum's "Need You Now" 80% to 20%
  
• Eminem's "Love the Way You Lie" beat Ke$ha's "Blah Blah Blah" 79% to 21%
  
• Eminem's "Not Afraid" beat Taylor Swift's "Mine" 74% to 26%
• Katy Perry's "California Gurls" beat the Gregory Brothers' "Bedroom Intruder Remix" 74% to 26%
• Bruno Mars' "Just the Way You Are" beat Ludacris's "My Chick Bad" 74% to 26%
• Katy Perry's "Teenage Dream" beat Black Eyed Peas' "Meet Me Halfway" 72% to 28%
  

Multiple entry success rates:

• Lady Gaga: 100% (4 of 4 songs advanced to Round 2)
• Rihanna: 100% (3 of 3 songs advanced to Round 2, plus she provided guest vocals on Eminem's "Love the Way You Lie," which also advanced)
• Eminem: 100% (2 of 2 songs advanced to Round 2, plus he provided guest vocals on Drake's "Forever," which also advanced)
• Katy Perry: 100% (2 of 2 songs advanced to Round 2)
• Jay Sean: 100% (2 of 2 songs advanced to Round 2)
• Nicki Minaj: 100% (1 of 1 songs advanced to Round 2, plus she provided guest vocals on Trey Songz' "Bottons Up," which also advanced)
• Bruno Mars: 100% (1 of 1 songs advanced to Round 2, he provided guest vocals on Travie McCoy's "Billionaire," which also advanced, and on B.o.B.'s "Nothin' on You," which didn't advance)
• Usher: 100% (2 of 2 songs advanced to Round 2)
• Ke$ha: 66% (2 of 3 songs advanced to Round 2)
• Taio Cruz: 50% (1 of 2 songs advanced to Round 2)
• Trey Songz: 50% (1 of 2 songs advanced to Round 2)
• Taylor Swift: 50% (1 of 2 songs advanced to Round 2)
• B.o.B.: 33% (1 of 3 songs advanced to Round 2)
• Black Eyed Peas: 33% (1 of 3 songs advanced to Round 2)
• Jason Derulo: 33% (1 of 3 songs advanced to Round 2)
• Drake: 33% (1 of 3 songs advanced; he also provided guest vocals on Lil' Wayne's "Right Above It," which didn't advance)
• Lil' Wayne: 0% (0 of 1 songs advanced to Round 2; however, he provided guest vocals on Drake's "Forever" and Jay Sean's "Down," which both advanced to Round 2)
• Jay-Z: 0% (0 of 2 songs advanced to Round 2)
• Ludacris: 0% (0 of 2 songs advanced to Round 2; plus he provided guest vocals on Justin Bieber's "Baby," which also didn't advance)

Non-Rap/R&B/Dance Pop Song Success Rate: 37.5% (3 of 8; these included alternative, indie rock, and country pop songs)

Strongest Fan Base: Eminem, Nicki Minaj, and both Justin Bieber fans and anti-Justin Bieber fans

Voting for Round 2 ends tomorrow, January 19th, at 5:00 pm PST, so cast your votes for the songs you want to see advance to the Sweet 16! Also, don't forget that if you vote on every match up throughout the tournament, you'll automatically enter to win a This or That t-shirt or our grand prize of Beats by Dre Studio over-ear headphones. Blog about the tournament and you could win a This or That t-shirt or a year's subscription to Pandora One, Pandora radio's upgraded desktop application, as well as a $150 gift card to Amazon.com. Good luck and don't forget to vote!