Oscar winner Sean Penn reportedly had a night out watching U2 on stage.

Are Sean Penn & Charlize Theron Planning To Have A 'Classic' Wedding?

On Friday, Daily Mail posted a couple snapshots of the actor as he was waiting in line to see the band at The Roxy in Los Angeles. As he stood outside the venue, he casually dressed in a jacket with khaki pants.

It appears that Penn attended the event by himself as opposed to bringing his Mad Max: Fury Road star girlfriend Charlize Theron with him. It's unclear on where she was or why she wouldn't have gone with him, but it doesn't necessarily need to strike anything as too conspicuous.

Has Charlize Theron Changed Her Mind About Marriage?

In a previous report from Daily Mail, Theron opened up on her relationship with Penn on how they fell in love. It came during a reasonable time when the two didn't feel like they needed to add something to their lives to make it better.

"I was happy when I met Sean and I think that's why he fell in love with me- because I was happy and fulfilled and had a healthy dose of love for myself- and he's the same," the actress said. "He doesn't fill a hole in me and I don't fill a hole in him."

Penn has been married twice- first to pop diva Madonna and then to actress Robin Wright. Theron has never been married and rumors keep circulating if she and Penn will tie the knot. So far, no wedding bells are ringing.