It's been a pretty hectic week for the R & B singer Alicia Keys.

Kasseem Dean (Keys real name) announced this week her engagement to semi-long term boyfriend Swizz Beatz and the news that they are expecting their first baby together.

Beatz is a music producer and the pair met on the job.

Keys, 29, and Beatz, 31, are reportedly "very happy" according to a friend who spoke to the People Magazine.

Reps for the power couple - who manage to remain off the radar - say they plan to have a "private" wedding ceremony "later this year."

In March, Keys told U.K. newspaper Daily Record that she is "very interested in starting a family."

She was probably pregnant when she made this statement.

"It is one of the most beautiful experiences to have in this life and I am looking forward to it when it is my time," she said.

Beatz, 31, has two sons -- Kasseem Jr., 3, and Prince Nasir, 9 -- from previous relationships.

Keys has never been married.

The pair have been together since 2008.

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