Pet Rock: The Pop Culture Blog

Rumors are swirling that Mariah Carey and Nick Cannon were secretly married in a small ceremony on an island.

What sparked all this chatter? Mariah's been flashing a huge rock on her ring finger at events promoting her new album, "E=MC2," and hit single "Touch My Body." Mariah's rep denied to People magazine that the two even had a relationship, much less an engagement.

Celebrity jeweler Jacob & Co. said the ring is pretty hefty at 17 carats, featuring an emerald-cut fancy pink diamond in the center and 58 pink diamonds surrounding it, according to People.com. The ring is said to cost an astounding $2.5 million and is believed to be the same ring Nick gave to Victoria Secret model Selita Ebanks.

Yo, that's the tackiest move a man could make!

Nick Cannon first gained popularity in the movie "Drumline" and has gone on to produce and appear on MTV's "Wild N' Out."

If the two actually married, it would be Mariah's second marriage. Earlier in her career, Mariah was married to record exec Tommy Mottola from 1993 to 1998.