Liza Minnelli and Michael York ride a bike.

Liza Minnelli and Michael York ride a bike.

Barbra Streisand and Ryan O’Neal ride a delivery trike.

Barbra Streisand and Ryan O’Neal ride a delivery trike.

Sandy Duncan rides a bike.

Sandy Duncan rides a bike.

Alfred Hitchcock rides a bike. And signals.

Alfred Hitchcock rides a bike. And signals.