Lance Bass: New 'NSYNC Album? ... Fat Chance ... JT's Just Too Big

Lance Bass delivered another crushing blow to anyone hoping to hear new music from 'NYSNC any time soon ... and it's all because Justin Timberlake is just way too famous.

Bass, one of the 5 original members of the boy band is set to appear on this weeks' podcast episode of "Allegedly" with Matt Weiss and Theo Von. He says while the group had planned on getting back together after JT's first solo project, his career just blew up ... and there was no turning back.

However, he says there's been talks of possibly swapping JT out in the future ... take a listen to see who, if anyone, can fill his shoes.

You can catch the full episode here on Tuesday when it drops.