In a recent episode of the popular talk show, "David Letterman," iconic rock band U2 made a surprise appearance and shared some memorable moments with host David Letterman and the audience. The episode, which originally aired on [AIR DATE], showcased the charismatic duo of Bono and Larry Mullen Jr. as they discussed their latest album and their experiences on the road.

From the moment they stepped onto the set, it was clear that Bono and Larry Mullen Jr. brought their rockstar energy to the chat show. As they sat down with Letterman, the audience erupted in applause, demonstrating their excitement for these legendary musicians.

During the interview, Bono and Mullen Jr. revealed that they were currently touring with their new album, "Pop." They expressed their delight at being able to connect with their fans through live performances and shared anecdotes about their tour experiences.

One of the highlights of the interview was when the topic turned to the huge lemon prop that accompanied them on stage during their live shows. Bono humorously explained that they wanted to be the "brightest, boldest, and baddest" band on tour, hence the unconventional choice of a 40-foot lemon as a prop. Their lighthearted banter about the lemon added a touch of humor to the conversation, reminiscent of the classic mockumentary film, "This is Spinal Tap."

The conversation also touched on their friendship with the legendary Frank Sinatra. Bono and Mullen Jr. shared their admiration for the late singer and spoke fondly of a duet they had with him. They recalled receiving a fax from Japan regarding a collaboration called "I've Got You Under My Chicken," which added a surreal element to their careers.

As the interview unfolded, Bono and Mullen Jr. showcased their camaraderie and playfully teased each other. They discussed early moments in the band's history when Mullen Jr. tried to fire Bono but ultimately relented and welcomed him back. The audience laughed along as they recounted amusing anecdotes that highlighted the dynamics within the band.

Throughout the interview, it became clear that U2's music and performances resonated with fans, including notable celebrities. They shared stories of meeting Frank Sinatra and the genuine connection they felt with him as fellow musicians. The audience was captivated by the fascinating insights into the lives of these iconic rockstars.

As the interview concluded, Bono and Mullen Jr. revealed their future plans, which included continuing their tour across the United States and Europe. They expressed their desire to inject a sense of excitement and vibrancy into the rock and roll scene, making it clear that they are determined to push the boundaries and keep the genre alive and kicking.

In true rockstar fashion, U2 delivered a vibrant and engaging appearance on "David Letterman." Their charming personalities, combined with their love for music and their fans, made for an entertaining and unforgettable episode. Whether you're a die-hard U2 fan or simply an admirer of legendary musicians, this interview is a must-watch. So, grab a seat and prepare to be captivated by the magic of U2 on the talk show stage.