"I want to create a line to reach out to those guys who are not young men anymore but who want to still be part of that urban lifestyle," Simmons said.
Among other pieces in the show were plaid shorts, free-flowing jackets and classic five-pocket pants created in materials like wool and cotton blends.
"Russell is so amazing and such an inspiration," said actress Gabrielle Union, recently appeared on ABC's "Ugly Betty" and sat near the runway. "I am just honored to be here in his support and to celebrate his birthday."
Simmons turned 51 on Saturday.
The show also attracted the "American Idol" trio of Ryan Seacrest, Simon Cowell and Randy Jackson.
When asked about Simmons' latest line, Jackson quipped: "Hot, hot, hot."
Simmons also has partnered with a new social networking Web site, Globalgrind.com, that provides Internet savvy hip-hop aficionados with news and discussion groups.
"The great thing about working with Russell on this is that since he only gets behind things that he's really passionate about, it's a great feeling to know that we share the same goal and that's to have the best product out for this demographic and to give them the voice they need," said Navarrow Wright, chief executive of Globalgrind.com.