George W. Bush and Bill Clinton sounded more like a Jerry Lewis and Dean Martin at the Presidential Leadership Scholars conference in Dallas.

The two former Presidents poked fun at each in the light-hearted appearance Thursday at the George W. Bush Presidential Center.

“Why do I have a friendship with him?” Bush said when asked about his relationship with Clinton.

“Well, he’s called a brother with a different mother.”

The duo spoke about their grandkids and life post-White House.

“I painted because I was bored,” Bush deadpanned about his new hobby.

At one point, Clinton was fawning over his three-year-old daughter singing “Happy Birthday” and Bush butted in.

“Can your granddaughter sing “Happy Birthday” in Mandarin?” Bush asked.

When Clinton responded “No,” Bush quickly shot back “Mine can.”