Fergie Reveals Josh Duhamel Missed Son Axl's First Steps

— -- Fergie was thrilled when her son Axl took his first steps last week.

However, her husband, Josh Duhamel, unfortunately missed the big milestone.

"He was at work. I felt so bad!" the singer told Us Weekly. "But you know, we're both working parents so each of us are going to get different gifts."

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Fergie, 39, and Duhamel, 41, welcomed their son last August. When he began walking, the singer could hardly believe her eyes.

"I was shocked! He climbed up the stairs and he climbed back down. I was helping him back down and he got up the stairs and he [reached out] and came to me!" she said. "It was exhilarating! I just thought, 'Did my son just walk?'"