Wedding Bells are Ringing for Nicole Richie & Joel Madden!

After playing coy for a while, Nicole Richie finally confirmed her engagement to longtime beau Joel Madden yesterday while taping a Late Night with David Letterman show set to air this Friday, Feb. 19. Though the couple has denied that marriage was necessary to cement their bond, a few months ago we reported on rumors that the couple was secretly engaged or possibly even already married.

Madden informally confirmed Richie's announcement, tweeting, "Yep. i'm engaged. Very happy. Yeah we've been engaged for a while so your [sic] all kind of late on that. But Thanks for the hooplah all the same." Apparently, Richie and Madden's closest family and friends have known all along, but managed to keep their mouths shut long enough for the couple to enjoy this super exciting time in their lives. "P.s. thats why i love my family and friends," Madden tweeted, "None of them are sources. All good tight lipped people who let us enjoy it! Thanks everybody"

Richie was definitely confident about the announcement heading in to the taping of Late Night. She posed for photogs outside of the studio, generously flashing the huge diamond sparkler Madden gave her. This couple is one of our faves so we're excited to see Madden put a ring on it!

Congrats to the happy family.