The Britney Spears biopic Britney Ever After is set to premiere tonight on Lifetime, and here's how and when to watch it.

The Lifetime original movie Britney Ever After stars Natasha Bassett as the titular pop icon. The biopic centers on her incredible "rise to fame, fall from grace and eventual triumphant resurrection, firmly securing her position as one of the world's greatest entertainers," says Lifetime.

Some of the highlights and lowlights expected to be featured in the movie include her taking the world by storm in the late '90s and early 2000s, her relationship with Justin Timberlake and Kevin Federline and her infamous head-shaving meltdown.

The film is directed by Leslie Libman (Manson's Lost Girls) and written by Anne-Marie Hess (Perfect High), from executive producers Steve Michaels, Jonathan Koch and Joan Harrison are executive producers.

Other stars include Clayton Chitty as Federline, Nicole Oliver as mother Lynne Spears, Matthew Harrison as father James Spears, Nathan Keyes as Timberlake, Josie Bulbrook as sister Jamie Lynn Spears, Jillian Walchuck as Paris Hilton and Elinet Louicius as Jamie Foxx.

Britney Ever After is set to premiere tonight (Saturday, Feb. 18) at 8 p.m. ET/PT on Lifetime. An encore presentation will air at midnight.

If you cannot watch the Britney Ever After biopic on Lifetime but still want to watch it live online, you can try Sling TV, which has a live stream of Lifetime. All you need to do is sign up for a free seven-day trial, if you don't have the service already.

Additionally, Britney Ever After is expected to be available to stream the following day on the Lifetime website. However, you may need to input cable subscription information to access it.

To live tweet and follow along with others watching the premiere of Britney Ever After, use hashtag #BritneyEverAfter on Twitter.