The 2018/2019 PFA Player of the year nominee helped himself to a first ever career hattrick as Manchester City tore the visitors to shreds in an amazing performance in front of the home fans.
Manchester City were up by five goals inside the first 18 minutes before adding three more after the break.
The game marked a return to winning ways for Pep Guardiola’s men, who were stunned 3-2 by newly-promoted Norwich City last week, and Silva was full of praise for his teammates after the game.
"We were unbelievable in the first 30 minutes, scored lots of goals and had control," he told BBC Radio 5 Live. "After the Norwich defeat, it was great to give our fans the result and the performance.
"We aimed to keep it going in the second half. We didn't want them to hurt us or score past us.
"Football is a hard game. I've won 8-0 today but I've lost plenty of times by four or five goals. You just have to keep going so I wished the Watford players well."
"Kevin is a fantastic player," he added on De Bruyne, who assisted twice and also scored one goal.
"Everyone knows how good he is when he is fit. When he is playing like today, he is one of the best players in the Premier League."
Manchester City remain second on the table, two points behind leaders Liverpool, who travel to Stamford Bridge to face Chelsea on Sunday.
