Tempers are flaring over coffee giant Starbucks new logo.

It features a drawing of a half-naked two-tailed mermaid and is being used temporarily to promote a new roast of coffee.

It's a retro revival the chain's first logo, which debuted in Seattle over 35 years ago.

A Christian group in San Diego is calling for a national boycott of the coffee shops.

Founder of the religious group Mark Dice told the Star Tribune the image "has a naked woman on it with her legs spread like a prostitute. Need I say more?"

What do you think? Click here to take a look at the evolution of Starbucks logos and see the new one.
(WARNING: Images may be considered graphic and offensive)