Kelsey Grammer may be the Boss, but it was his awesome costars who took charge of throwing a baby shower for his wife, Kayte.
Kathleen Robertson, Sanna Lathan and Hannah Ware hosted the celebration for the first-time mom-to-be at Drumbar in Chicago, where they shoot their hit Starz drama...
The party started out on the roof, where guests played a Price Is Right kind of game guessing the prices of different baby essentials, including diapers, wipes and lotion, a source reports.
"They then headed inside to the bar's indoor area, where they opened gifts," the source said.
The bash lasted about three hours. Kelsey was the lone male in the group until Boss costar Jonathan Groff showed up to join the festivities.
Kelsey and Kayte married in February 2011; they announced in January that they were expecting twins. The babies will be No. 4 and 5 for the actor.
Kelsey, who at 57 is 25 years older than Kayte, told us shortly after announcing the pregnancy that he wasn't nervous about having twins.
"I don't panic about kids," he said at the DGA Awards. "They're always a blessing. We'll buy a couple of cribs and take it from there."
Robertson told us that same night she couldn't be happier for the couple, gushing, "His wife is the warmest, most generous woman."