Twitter #MusicMonday top songs: 30 Seconds to Mars, Owl City

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On Monday, January 4, nearly 50,000 tweeters shared the names of music and songs they liked in a tweet using the "#musicmonday" hashtag. The week's top songs included continuing favorites by 30 Seconds to Mars, Owl City, Lady Gaga, and Ke$ha.

The top three singles of the week were "Kings and Queens" and "This is War" by 30 Seconds to Mars in first and third, and "Fireflies" by Owl City in second. New to the list was "United States of Pop 2009," DJ Earworm's annual music/video mashup of the Top 25 Billboard pop songs of the year.

Top #musicmonday songs at twit40.com:

1. Kings and Queens - 30 Seconds to Mars
2. Fireflies - Owl City
3. This Is War - 30 Seconds to Mars
4. Bad Romance - Lady Gaga
5. TiK ToK - Ke$ha
6. United State Of Pop 2009 - DJ Earworm
7. Monster - Lady Gaga
8. Russian Roulette - Rihanna
9. I Gotta Feeling - Black Eyed Peas
10. Whatcha Say - Jason Derulo
      Sex Therapy - Robin Thicke

At MTV.com, where a #MusicMonday blog post provides weekly recommended listening, news staffers are talking about REM's "Circus Envy," OK Go's "WTF?," and Yeasayer's "Ambling Alp."

#MusicMonday is a weekly Twitter trend that gives Tweeters a chance to find and share music. Users recommend music to their followers, and people looking to discover new music can search the term "#musicmonday" and scroll through thousands of ideas.