Polydor Records, Janet’s UK label, has launched an official website and television advert for Janet’s upcoming greatest hits album released in the UK on Monday.

JanetJackson-TheBest.com features the latest news, links to buy the compilation and a megamix video.

The television advert features short clips of several of Janet’s biggest UK hits and you can watch it below.

The official trailer for Janet’s upcoming movie Why Did I Get Married, Too? has been released along with the official website.

WhyDidIGetMarriedTooMovie.com is yet to feature any content except a link to the Yahoo! Movies page where a trailer can be viewed. Check out the trailer below.

Janet’s official website, JanetJackson.com, relaunched last night to reveal a redesigned site featuring  a biography, a discography which incorporates many of  Janet’s music videos, photographs, information about the causes Janet supports and an online store.

It also features links to social networking sites include Facebook, Twitter and a revamped MySpace page.

In an updated biography, the website reveals more information about some of Janet’s upcoming projects:

Later this year, Janet will publish her first book, providing an intimate look at her life and how she has dealt with issues of self-esteem. Janet will reveal aspects not known before about her uniquely successful career not only in music but in television and motion pictures.

The next months and new year will also bring another film starring Janet as she joins Tyler Perry in his sequel, Why Did I Get Married Too, followed by a new album slated to released during the first quarter of 2010.

JanetJackson.com, Janet’s official website, has been updated to include a photo of brother Michael along with quotes from the tribute she gave at the recent BET Awards in Los Angeles.

After a period of little contact with fans via her official website, Janet has posted a note to thank fans for their support. She also posted the recently released Feedback remix featuring Busta Rhymes, Ciara and Fabolous.

Janet’s official website, JanetJackson.com, has relaunched to coincide with the release of her new album, Discipline, in the US today.