The actress began dating Timberlake in January 2007 but the couple announced their split in March 2011.
However, by fall 2011, the couple reunited, and in late December Timberlake proposed to Biel in the mountains of Jackson, Wyoming, reported Showbizspy.
Biel is excited about the upcoming wedding but has no specific plans for it.
"It's very exciting but it's hard to find the time for it! But it's a good moment just to enjoy it. I have no idea of what I want. I am one of those people who are not very detailed orientated.
"I don't feel like I'm one of those people who is like, 'This has to be done this way.' I'm more of a big idea person. I will probably give an idea and let it be created," she said.
