Just Want You to Know

The music video for "Just Want You to Know" pays homage to the 1986 documentary Heavy Metal Parking Lot; set on May 13, 1985, it features the Backstreet Boys both as fans of the fictional heavy metal band "Sphynkter" and as the Sphynkter band members themselves in concert footage.^[2] There are two versions of the video, both directed by Marc Klasfeld and released worldwide on September 3, 2005. The second version, which has the Backstreet Boys performing solely as Sphynkter throughout the video, was a special reward exclusively leaked online.

UK CD1 and European CD single^[3][4]

1. "Just Want You to Know"
2. "Larger than Life" (live)

UK CD2 and Australian CD single^[5][6]

1. "Just Want You to Know"
2. "I Want It That Way" (live)
3. "Show Me the Meaning of Being Lonely" (live)

UK DVD single^[7]

1. "Just Want You to Know" (video)
2. "Weird World" (a performance taken from AOL Live)

European maxi-CD single^[8]

1. "Just Want You to Know" – 3:51
2. "Show Me the Meaning of Being Lonely" (live) – 4:44
3. "Larger than Life" (live) – 3:57
4. "I Want It That Way" (live) – 4:15
5. "Just Want You to Know" (video enhancement)
6. Screensaver enhancement

Japanese CD single^[9]

1. "Just Want You to Know" (album version)
2. "Just Want You to Know" (instrumental version)
3. "I Want It That Way" (live)

• Drums, Percussion – Shawn Pelton
• Engineer [Additional Pro Tools] – John Hanes
• Engineer [Assistant Additional Pro Tools] – Tim Roberts
• Engineer [Pro Tools Techs] – Christian Nilsson, Dan Chase
• Mixed by – Serban Ghenea
• Producer – Max Martin and Lukasz "Dr. Luke" Gottwald
• Recorded by – Christian Nilsson, Lukasz "Dr. Luke" Gottwald, Seth Waldmann
• Recorded by [Assistant] – Alan Mason
• Recorded at Maratone Studios (Stockholm, Sweden) and Conway Studios (Hollywood, California)
• Written By – Max Martin, Lukasz Gottwald