In 1979 "Studio 54" was such a well recognized brand that they launched jeans to go with it. These ads stated "Now everybody can get into studio 54", but I Initially read it as "Not everybody..." when I saw the male version, because that is one fit hunk.
Expecting that these posters would be popular with certain fans, there's a note of how to order a 17"x26" full color poster noted at the bottom of the ad.