(Above, L-R: Erik LaRay Harvey; Margot Bingham; Michael Kenneth Williams; Sean Combs and Russell Simmons at the Boardwalk Empire premiere party in Los Angeles.)

Following the official premiere in NYC on September 3, the HBO Multicultural Marketing team hosted two exclusive bi-coastal VIP/Influencer events to celebrate the season four premiere of Boardwalk Empire.

HBO recreated the Emmy® Award-winning drama's style, sophistication and ambience at an invite-only, pre-Fashion Week event with celebrity stylist June Ambrose. The event, held on Wednesday, September 4 in New York's The Houston Hall, featuring celebrity guests and timeless couture from top designers. Celebrity guests included NY Knicks' Tyson Chandler, male supermodel Tyson Beckford, Grammy® Award winner Deborah Cox, R&B singer Estelle and many more.

On Friday, September 6, HBO partnered with record producer, actor, rapper, entrepreneur and three-time Grammy winner, Sean "Diddy" Combs. Combs hosted the A-list celebrity premiere of Boardwalk Empire in Los Angeles. Celebrity guests included entrepreneur Russell Simmons, actress Tracee Ellis Ross, LA Clipper's forward Matt Barnes and many more.

See photos below from the New York and Los Angeles events.

Keke Palmer and Niecey Nash

Keke Palmer and Niecey Nash

Michael Kenneth Williams and Sean Combs

Michael Kenneth Williams and Sean Combs

Houston Hall, New York

Houston Hall, New York

Tyson Beckford and June Ambrose

Tyson Beckford and June Ambrose

L- R: Tristan Wilds; Lucinda Martinez, SVP, Multicultural Marketing; Margot Bingham; Kimberly Chandler; June Ambrose; Tyson Chandler; Michael Kenneth Williams; Erik LaRay Harvey

L- R: Tristan Wilds; Lucinda Martinez, SVP, Multicultural Marketing; Margot Bingham; Kimberly Chandler; June Ambrose; Tyson Chandler; Michael Kenneth Williams; Erik LaRay Harvey

Male models. Houston Hall, New York.

Male models. Houston Hall, New York.

Models. Houston Hall, New York

Models. Houston Hall, New York