J.Lo: One Hot ... Mama?

Jennifer Lopez – who's been mum on baby rumors – kept everything under wraps in a black trapeze dress by Jasmine Di Milo during an appearance on Good Morning America. When coyly asked, "How are you?" by host Diane Sawyer, the singer replied, "I'm very well, thank you. This is really,

really a great, happy time in my life. ... Everything's great."

Another song, another dress! Lopez stayed covered with a cleavage-baring, vintage Jean Paul Gaultier frock – and sexy thigh-high boots! – during her Good Morning America appearance.

On her way into TRL in New York City, Lopez had everyone

guessing about just what is under her graphic, striped babydoll dress and

floppy hat.

A gust from a wind machine momentarily offered a glimpse under Lopez's

Roberto Cavalli-designed wardrobe during a stop at the Mohegan Sun Arena in

Uncasville, Conn. "I used a lot of stretch fabrics," the designer told

PEOPLE of his tour outfits.

Putting aside her belly-baring stage ensembles of past, Lopez dazzled in a gold Issa minidress – with plenty of room to grow! – during the opening night of her tour with husband Marc Anthony at Atlantic City's Trump Taj

Mahal Casino and Resort.

During a London stop to promote her new album, Brave, Lopez made

a loud style statement in a one-shoulder leopard-print dress, continuing

her wave of eye-catching (or distracting?) patterns.

Jennifer Lopez achieved maximum coverage in her Roberto Cavalli maxidress

– and omnipresent floppy hat – at the opening of the Just Cavalli

store in N.Y.C.

Starting her performance in a studded Burberry trench coat, Lopez stayed in

step during her song at the Fashion Rocks concert at Radio City Music Hall.

Before the baby buzz grew to a pitch, Jennifer Lopez and Marc

Anthony attended the HFPA Installation Luncheon at the Beverly Hills Hotel, looking every inch the happy Hollywood couple.