Check out some of the dozens of photos she posted on Instagram showing the happy couple and their friends and family having a blast at last night's rehearsal dinner and pre-wedding party.
Joe serenades Sofia with his rendition of the Guns N' Roses classic "Sweet Child o' Mine":
An intimate moment on their last night as single people:
Having a blast at the rehearsal dinner celebration:
With "Modern Family" co-star Jesse Tyler Ferguson and his husband Justin Mikita:
Beaming with friends:
Joe and Sofia will tie the knot later this afternoon.