Usher and his wife Tameka Foster are expecting their second child, a source close to the singer told People magazine.

Pregnancy speculation started after Foster was seen sporting a "belly-disguising outfit" at her husband's NFL kick-off concert in Manhattan on Sept. 4.

A source told People the dress was "very deceiving."

"You couldn't tell she was pregnant when she was sitting down," the source told the magazine.

The couple welcomed their first child, Usher Raymond V, in November of 2007.

The 29-year-old R&B star has spoken publicly about how much he loves being a father.

"I'm so proud to be a father by the time I'm 30," he told People last month. "I'd hate to be 80 years old and not be able to run with my kids. I need to still be able to do flips when they're in high school!"

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