This is Angel Jones from the short lived Fish Police series.

Angel Jones (voiced by JoBeth Williams) - The lead singer at Calamari's club and another love interest for Gil. Despite his protests in the first episode that they are just friends, Angel strongly hints at being interested in Gil with her constant seductive flirting with him throughout the entire series. She has a very voluptuous figure and seems to be slightly inspired by Jessica Rabbit. The series itself makes note of this in the first episode, where she parodies Jessica's infamous 'I'm not bad...' line. .