Listen to Justin Timberlake on iHeartRadio

Justin Timberlake is finishing what he started with his best-selling March album The 20/20 Experience. Today, Part Two, the second half of his big 2013 comeback arrives.

Buy The 20/20 Experience Part 2 on iTunes

Part Two has been streaming in full on iTunes for the week ahead of its release, and includes the star's latest singles "Take Back The Night" and "TKO." Justin has described the new album as an edgier version of its predecessor, which sold a massive 968-thousand copies in its debut sales week.

Part One gave Justin the best sales week of his career, and the best of any other artist so far this year. This fall, he's taken a similar approach to promoting the second half, making weekly appearances on "Late Night with Jimmy Fallon" and performing a special Los Angeles concert for Jimmy Kimmel Live." He also helped to close out the month-long iTunes festival in London on Saturday and closed out the iHeartRadio Music Festival in Las Vegas September 21, where her performed new single "TKO" for the first time. You can see Justin's iHeartRadio performance Tuesday night at 8/7c on The CW.

[PHOTOS: Justin Timberlake at the iHeartRadio Music Festival 2013]

Watch a clip of Justin performing "TKO" at the iHeartRadio Music Festival: