That's Jerry Lee Lewis at the top. The 2nd pic is the movie poster of Great Balls of Fire, where Dennis Quaid portrays Jerry Lee Lewis. The pretty lady in the 3rd pic happens to be Vivien Leigh, whose character Scarlett O'Hara in the classic Gone With The Wind has "Great Balls of Fire!" as one of her famous lines which gets repeated during the course of the movie. And of course, Top Gun, where an uncredited soundtrack was Great Balls of Fire. (The track was later included in the 2000 re-release).

Ergo, the connect: Great Balls of Fire. Good answer Rishabh.