Holly Madison Rocks Baby Bump At Rock Of Ages

Some expectant moms play Mozart for their baby bumps. Holly Madison is raising her baby on Rock!
The former Girls Next Door star hit the opening night premiere of the musical modern classic Rock Of Ages at the Venetian in Las Vegas on Saturday.
And she only had to pay for one ticket?
Ch-ch-check out the pics (below) to see just how enormous that bump is getting!
Speaking of ages, isn’t that kid’s birthday coming up soon? LOLz!
[Image via DJDM/WENN.]