***Britney Spears She's Gettin' Engaged Tonight!

The next time we see Britney Spears, she could be showing off a huge rock on her wedding ring finger following reports that the star will  be getting engaged to long-term boyfriend Jason Trawick tonight!

Of the proposal, TMZ reports that Jason is planning to pop the question to Britney tonight. However, the proposal won't come as a surprise as the source adds that "Britney knows they’re getting engaged, so it’s not going to be a big surprise.”

And it looks as though the couple want to celebrate in style because according to the Las Vegas Review-Journal,  Brit and Jason, who have been together for over a year, will celebrate their engagement and Jason's 40th birthday in Las Vegas.

If the reports are true, it won't be the first time Britney has walked down the aisle after getting married to friend Jason Alexander and later Kevin Federline.

Britney has been married twice before –  to Jason Alexander for 55 hours and Kevin Federline, the father of her two sons,  for two years.