Solar is the first full-length solo album by Korean singer Taeyang, member of Big Bang. The album was released in two forms: the "Regular Edition" and the "Deluxe Edition" which is limited to 30,000 copies worldwide. The lead-single was "I Need a Girl" featuring his bandmate G-Dragon. In Solar, Taeyang put much effort into enhancing his vocal skills as well as his composing, co-writing as many as four songs ("Solar", "Where U At", "Wedding Dress", and "Take It Slow") and writing lyrics for "Take It Slow".

Taeyang's first international album, Solar International, is the first ever K-Pop music release to be sold worldwide on iTunes as both an audio and video album. The audio version (complete with a digital booklet) hit iTunes stores on August 19, 2010, while the video version (bundled with bonus, behind the scenes documentaries) arrived by September 10, 2010. The audio album combines both English and Korean hits from his past and present albums including "I'll Be There", "Connection" (feat. BIG TONE), "Wedding Dress" and "I Need a Girl (feat. G-Dragon)".

The music video shows Taeyang dancing with 2 back up dancers (choreographers), Lyle Beniga and Shaun Evaristo, in an alleyway. Teddy Park's rap shows him wearing a leather coat, while tossing an apple in one hand, on a motorbike. Taeyang wears black with the dancers and then changes to white at the dance break. In the end of the video, the dancers walk away and Taeyang walks down an alleyway looking back at a girl (Wedding Dress prequel).

The video of I Need a Girl was released also on July 1, 2010. Both the music video and dance version video features Sandara Park as Taeyang's love interest and includes appearances by G-Dragon.

All tracks written by Jason and Taeyang.

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