June 13, 2011 11:00 AM

Robert Pitts/Landov

Another day on stage with mom!

Jennifer Hudson gets a little help from son David Daniel while serenading the audience during Good Morning America‘s 2011 Summer Concert Series in New York City on Friday.

Hudson’s next gig? Penning a memoir focused on her weight loss struggle — and success! — over the years.

The 22-month-old is the only child for the singer/actress, 29, and fiancé David Otunga.

RELATED: Jennifer Hudson: My Son’s a ‘Little Entertainer’

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