"[1] On May 9, 2009 the full-length single of "It's You" and screen shots of the respective music video were leaked on the Internet.

The single also stayed as #1 in Thailand's Channel V Countdown Asia Chart for three consecutive weeks.

[3] On October 7, 2009, in a daily countdown by MYX Philippines, "It's You" peaked at #1, with only a 0.53% lead with Taylor Swift's You Belong With Me, which ranked #2 on that day.

[4] The music video was directed by Cho Soo-hyun and filmed in a studio in Ilsan, Gyeonggi Province, South Korea in late April 2009.

A drama version of the music video, which excludes the intercut sequences of choreographed dancing, was released on May 15, 2009.

As he smells the flowers, he whips past Kang-in who is sitting down at a table angrily reading a letter.

Kyuhyun quickly walks past Sungmin and passes by Heechul in the middle of the street, who is sitting on his motorcycle and taking off his helmet.

The rest of the Super Junior members appear walking by Heechul, and Siwon is now shouting through the phone.

Donghae angrily walks by and steps back as the camera pans toward the rest of the Super Junior members standing behind Heechul.