Best known for her outlandish outfits and ever-changing hair color, singer Cyndi Lauper appears to gotten a major facial makeover that has gone awry.

The 80s pop star's bloated face was startling puffy and swollen when she was spotted leaving BBC Radio 2 in London on Sunday, and an expert exclusively told RadarOnline.com that he thinks the swelling could be due to surgery or steroids.

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"Cyndi Lauper doesn't look like she just wants to have fun in this photo, and with good reason," celebrity plastic surgeon Dr. Anthony Youn, who hasn’t treated the singer, told RadarOnline.com in an exclusive interview.