The former 'N Sync star made the statement in honour of 15-year-old student Lawrence King, who was killed in February in California after he arrived at school in feminine clothing.
Bass told the Associated Press: "I heard about Lawrence on the news, and it was just incredible to me that kids that age would have such an issue...with the subject of being gay."
The announcement will be broadcast on the Gay, Lesbian & Straight Education Network as part of a promotion for the National Day of Silence, which sees students taking a vow of silence in protest at discrimination in schools.
"I think it's time for me to stand up...and help educate," said the former boyband star. "I'm lucky enough to have been given a voice to be able to talk and grab the attention of people."
He also spoke about a possible reunion for 'N Sync, claiming that there was "always a chance" the group could reunite.
The 28-year-old said: "There's always a chance that 'N Sync will do another album. I am totally game, I would love to. I mean, the best times of my life were with those guys."
'N Sync, which featured Justin Timberlake, JC Chasez, Joey Fatone and Chris Kirkpatrick, went on hiatus in 2002 after seven years together. They released three platinum-selling studio albums and had hit singles including 'Pop', 'Bye Bye Bye' and 'Girlfriend'.