Rod Stewart became a father for the eighth time Wednesday, RadarOnline.com has learned, as his wife Penny Lancaster Stewart gave birth to a baby boy named Aiden.

Aiden weighed in at a healthy 7 pounds, 12 ounces at birth. He is the 66-year-old Downtown Train singer's second child with Penny, 39, as they also have a 5-year-old son named Alastair Wallace.

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"Mother and baby are healthy and blissfully happy," the couple's rep told People. 

Stewart and Lancaster  married in June 2007.

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Fun fact: Baby Aiden’s stepsister -- Rod’s oldest daughter Sarah Thubron -- is 47.

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