We wonder what was going through his head!
As we reported, Gwen Stefani filed for divorce from her husband of 13 years Gavin Rossdale, citing irreconcilable differences.
[ Photos: The Nastiest Celebrity Divorces! ]
The Bush frontman filed right after, and both parties are asking for joint custody of their three children: Kingston, 9, Zuma, 6, and Apollo, 1.
That same day, just after the No Doubt front woman submitted paperwork, the 49-year-old rocker was spotted walking his dog in Beverly Hills, CA.
As pictured (above), the British-native donned his signature man-bun, black shades, and hip apparel as he was seen with a male friend.
The 45-year-old songstress and Rossdale would have celebrated their anniversary next month.
To address their breakup, they released the following statement:
"While the two of us have come to the mutual decision that we will no longer be partners in marriage, we remain partners in parenthood and are committed to jointly raising our three sons in a happy and healthy environment. To that end, we respectfully request privacy from the media during this time."
We wish them both the best.
[Image via Splash News.]