Paolo Gregoletto

Gregoletto was endorsed by B.C. Rich. In the early days when he first joined the band he used a red custom shop Eagle bass. He has a signature 5-string Warlock bass, as well as a custom Mockingbird. Gregoletto was also seen in the videos for Trivium's 2015 singles "Silence in the Snow" and "Until the World Goes Cold" playing a 5-string Warwick Corvette with two humbuckers and a flame maple top. He has been seen playing this same bass at live shows supporting Silence in the Snow. He stated on his Instagram account that he had now fully switched from B.C. Rich to Warwick, but did not specify the reasons, though he still stated he loved his B.C. Rich instruments.

Gregoletto is known to be most frequently interactive with Trivium fans, often answering questions, posting many videos, photos, and band updates via his official Facebook, YouTube and Twitter. Gregoletto has also recently opened an online forum. Since 2013 he has written a monthly column for the UK's Bass Guitar Magazine.

Gregoletto joined Trivium on September 5, 2004 when Matt Heafy, Corey Beaulieu and Travis Smith were in the studio demoing new material for what would become Ascendancy. Gregoletto was in the studio with Jason Suecof next to where Trivium were demoing, and was told by Suecof that they needed a bass player. After jamming with other members, Gregoletto agreed to record for Ascendancy and tour to promote it with the band. Gregoletto originally had no intentions of staying with Trivium, but wanted touring experience. He joined just in time for the tour Trivium booked with Machine Head.

Paolo Francesco Gregoletto (born September 14, 1985) is an American musician and songwriter who is best known as the bassist of the heavy metal band Trivium. Metal producer Colin Richardson called him the best bassist he has ever worked with.