Conversation so far:
When did he become U2?
The name was subsequently changed to "The Hype", but changed to "U2" soon after Dik Evans left.
How many members was in his group?
CANNOTANSWER.
Do he do any tours?
In 1995, after the Zoo TV Tour and Zooropa album, Clayton headed to New York with bandmate Mullen to receive formal training in the bass.

Question: Do you know any of his alblums?
Self-contained rewrite: Do you know any of Adam Clayton's albums?