William Michael Morgan and Jennifer Wayne are tying the knot!

The "I Met a Girl" singer popped the question to John Wayne's granddaughter (and Runaway June member) over the holiday season.

The pair celebrated their engagement last night with some famous friends.

Jana Kramer posted pics of the group and their "rings." As did the bride to be.

Celebration also included a performance by Willie Nelson. (OK, OK, they were at Willie's Nashville tour stop, but it sounds better the other way.)

But, of course, Jennifer was happier to hear her man sing.