Possible Clues:

• Fab foursome
• Old group take in lake in ancient city
• 1 getting Tesla — bet he crashes!
• Group that had a #1 hit with 106-Across
• ''Here Comes the SUN'' group
• Group on which policeman may be shortly in case
• Group whose songs get spoonerized in 18-, 23-, 32- and 46-Across
• ''Penny LANE'' performers
• Invasion leaders of the '60s
• Bitter about contract finally secured by old city group