Christian Siriano, Brad Walsh

Project Runway alum Christian Siriano is engaged to musician Brad Walsh.

"Yesterday @BradWalsh and I exchanged engagement bracelets," Siriano tweeted Sunday, along with a picture of the matching jewelry.

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Added Walsh: "We've told our moms so now we can tell you. Yesterday we exchanged engagement bracelets."

Siriano and Walsh have been together since 2007.