It seems the latest Hollywood accessory has become the engagement rock. Everywhere you turn, another pair of stars is preparing to tie the knot. But before these sweethearts say their "I do’s," they revealed their wedding details, only to "Extra."

Kevin Costner is set to marry longtime love Christine Baumgartner at his Aspen ranch in September, but the superstar told "Extra" he's letting his bride plan the big day. "I don’t care where go or what we do," Costner admitted. "She’s got good taste, she makes sense."

Chris Klein and Katie Holmes, who got engaged last December, have not yet set a date for their big day. Neither has golf god Tiger Woods or Norwegian beauty Elin Nordegren. Tiger insisted, "I just play golf. We haven’t made any plans, so I don’t have to worry about anything."

Alanis Morissette received her beautiful rock from boyfriend Ryan Reynolds, and the couple can’t wait for their big day. "He designed it with a jeweler friend of ours in Los Angeles," Morissette revealed. "He asked my parents for their blessing, which touched me so deeply."

"It was a bended-knee affair," Reynolds added. "But I loved her music before we met."

Wise-guy James Gandolfini is set to wed girlfriend Lora Somoza in October, and "West Wing" star Allison Janney and actor Richard Jenik plan to marry by the end of the year.

And Josh Brolin, who's been enjoying romantic visits from fiancée Diane Lane while filming "Into the Blue" in the Bahamas, will head to the altar next spring. "Just to have her down here and have my family down here is an incredible thing," Brolin told us.

With so many stars set to marry, it should be an incredible year for glamorous Hollywood weddings.