Beyonce joined Jay-Z and the boys in toasting summer’s end Sunday night. Arriving in a Maybach, the singer hung out at waterfront lounge La Marina on Dyckman Street with her hubby, Swizz Beatz and rapper Memphis Bleek. The group drank cocktails and nibbled on crab cakes and chicken lollipops. They were joined by Carmelo Anthony, Baron Davis, Steve Stoute, Hot 97 program director Ebro, and La Marina co-owner Fernando Mateo. They watched the sunset and then the Ravens-Patriots game on a flat screen outside. Despite rumors the new mom may be pregnant again, spies said she was served D’Ussé cognac cocktails. Jay-Z is the new spokesman for the liquor.