Miss Piggy, the ageless Muppet and star of "The Muppet Show," debuted a commercial for her soon-to-be-launched QVC lifestyle collection this morning on "Good Morning America."

Dubbed "Moi by Miss Piggy," the brand is Piggy's attempt to top QVC mainstay Joan Rivers. The over-the-top spot features Miss Piggy and models performing elaborate - and often, comical - poses inside an opulent mansion.

The commercial's tag line? "Why be you when you can be moi?"

Rivers and Piggy have been engaged in a decades-long feud that appeared to intensify last month when the pair got into an argument on camera. Rivers pushed Piggy, who retaliated by shoving Rivers into a cake.

Rivers' subsequent cake-covered red carpet appearance set tongues wagging.

The feud will climax on March 16, when the Muppets come to QVC to promote the new film, Disney's "Muppets Most Wanted." Rivers will also be there to promote her own line.

"Muppets Most Wanted," a jewel heist caper that will take the Muppets to Europe, premieres on March 21.

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