I'm engaged! Rosie O'Donnell to marry the girlfriend she met at Starbucks just months ago

Rosie O'Donnell is engaged to partner Michelle Rounds after a whirlwind romance, her spokesperson has confirmed to Mail Online.

The couple met at a Starbucks coffee house earlier this year and made their public debut as a couple in September at Rosie Theater Kids Gala in New York City.

The 49-year-old told her Rosie Show studio audience on Friday that the pair will exchange vows over Christmas, Us Weekly magazine reports.

Romance in overdrive: Rosie and girlfriend Michelle, pictured here in Miami last week, are engaged

The pair certainly looked the picture of happiness as they rode around Miami Beach on a motorbike last week.

Rosie and Michelle, a corporate head-hunter for a New York technology company, are 'very, very happy,' according to a source.

As well as a new love, the 49-year-old has just bought a $2.5 million town home in Chicago where she films her chat show on Oprah Winfrey's OWN network.

Rosie has four children from her marriage to ex wife, Nickelodean marketing executive Kelli Carpenter. They split in 2007. 

She briefly dated artist Tracy Kachtick-Anders earlier this year.

So in love: The pair are expected to exchanged vows over Christmas