Jaws dropped onto tables when the entire band of U2 came trooping into Red Rooster in Harlem for dinner. Bono, The Edge, Adam Clayton and Larry Mullen Jr. arrived together at Marcus Samuelsson’s restaurant Tuesday night. Sources tell us the bandmates rarely go out or dine together, and Bono was overheard telling astonished customers, “This is like the Last Supper.” U2 has been working on a new album, reportedly titled “Songs of Ascent” or “10 Reasons To Exist,” that producer Daniel Lanois says he has heard and is “big” and “amazing.” Bono was also overheard chatting with Dini von Mueffling, the co-founder of nonprofit Love Heals, which benefits the Alison Gertz Foundation for AIDS education in the fight against HIV/AIDS, for which the Irish rocker is on an unwavering crusade. An onlooker said, “Bono kissed her hand and asked her to take a video of the band with his iPhone as they hardly get to eat together.” Bono and The Edge also celebrated the 1,000th performance of “Spider-Man: Turn Off The Dark” Thursday.