U2 lead singer Bono attends the Opening Plenary Session: "Partnering for Global Prosperity," at the Clinton Global Initiative on Sept. 19, 2016 in New York.

Mike Pence held an impromptu meeting with U2 front man Bono, who calls the U.S. vice president "the second busiest man on Earth."

Pence met with the Irish rock star along the sidelines of the Munich Security Conference on the weekend.

Bono offered his appreciation to the vice president for meeting and noted that Pence had twice supported bills in Congress to provide AIDS medication to African nations.

Pence called it an "extraordinary historic accomplishment" and credited Bono with playing a "leading role." Reporters were then ushered away.

Pence later tweeted, “Enjoyed chatting with Bono at Munich Security Conference. Discussed prior effort to twice pass Africa AIDS assistance & future security in developing nations.”

Watch a clip from their meeting below.



Bono meets Vice President Mike Pence in Munich: "You're the second busiest man on earth." https://t.co/RgGAioQJyG pic.twitter.com/xB7ZFi1A4t — ABC News Politics (@ABCPolitics) February 18, 2017