Christina Aguilera says her baby 'loves' New York City.

The pop star is pregnant with her second child, which is her first tot with fiance Matthew Rutler.

And Christina wasn't shy about showing off her bump while out and about in the Big Apple on Thursday.

The singer posted a photo of the couple with Matt's hands on her belly, gushing over Twitter: 'Baby loves NYC.'

Just Jared reports Christina and Matthew were seen earlier in the day looking so in love as they left their hotel arm-in-arm.

The singer is believed to be expecting a baby girl, with the website claiming last month she announced her tyke's gender during a fan event in Kuala Lumpur, Malaysia.

News of Christina's pregnancy first broke in February, just weeks after she announced her engagement to Matthew.

"He asked and I said.." the singer tweeted on Valentine's Day, with a snapshot of her diamond engagement ring.

The couple's new addition will be a little sister or brother to Christina's six-year-old son Max, whom she shares with ex-husband Jordan Bratman.

Christina is known to gush about motherhood, telling Dateline NBC previously that becoming a parent changed her life for the better.

'He is my heart he is my world, he's just my baby,' she said.

Christina and Matt are said to be tying the knot later this year.

But although the wedding is a priority, it is claimed they are focusing more on their child.

"They just want a healthy baby," a source told Us Weekly back in February.