The achievements for the upcoming Grand Theft Auto IV DLC, The Ballad of Gay Tony, have just hit the Internet courtesy of StickSkills.
TBoGT: Gone Down - 5 GP
Complete all base jumps. (The Ballad of Gay Tony)

TBoGT: Diamonds Forever - 5 GP
Complete the Trinity. (The Ballad of Gay Tony)

TBoGT: Four Play - 10 GP
Hit a flag with a golf ball four times. (The Ballad of Gay Tony)

TBoGT: Bear Fight - 15 GP
Win the L.C. Cage Fighters championship. (The Ballad of Gay Tony)

TBoGT: Catch the Bus - 15 GP
Dance perfectly in both Tony's nightclubs. (The Ballad of Gay Tony)

TBoGT: Snow Queen - 20 GP
Complete 25 drug wars. (The Ballad of Gay Tony)

TBoGT: Adrenaline Junkie - 25 GP
Freefall for the longest possible time. (The Ballad of Gay Tony)

TBoGT: Maestro - 30 GP
Finish the Ballad. (The Ballad of Gay Tony)

TBoGT: Past the Velvet Rope - 45 GP
Score 80% or above in all missions. (The Ballad of Gay Tony)

TBoGT: Gold Star - 80 GP
Score 100% in all missions. (The Ballad of Gay Tony)
Most are typical of what has thus far been revealed of the DLC, except for the "Four Play." It sounds as though either golf or better still, mini-golf is included in The Ballad. There is the unused mini-golf course in Liberty City that fans have been requesting to have implemented since the game's release...