That's because the Rangers, specifically Ron Duguay, Dave Maloney, Anders Hedberg and Hockey Hall of Famer Phil Esposito, were wowing fans in a commercial for Sasson Jeans.
Watch: Youtube Video
The four Rangers show off remarkable flexibility as they glide across the ice, singing "Ooh, la la, Sasson" in their Sasson Jeans.
Lest you think this was a one-off of awesomeness, the Rangers even returned for a sequel, with Ron Greschner replacing Duguay, wowing some female fans in 1980.
Watch: Youtube Video
Ooh la la indeed.