New York City, New York: The blockbuster deal struck on NBA draft night between the Boston Celtics and Brooklyn Nets became official on Friday.

The Nets formally welcomed Kevin Garnett, Paul Pierce, Jason Terry and D.J. White to Brooklyn, where they’ll play under former star point guard Jason Kidd.

Kidd took over as coach last month in a rare jump straight from the playing ranks to a head coaching job.

“We are excited to welcome Kevin, Paul and Jason to Brooklyn,” said Nets general manager Billy King.

“All three players have championship pedigree and possess the veteran qualities that will make us a stronger team.”

Garnett and Pierce played key roles in helping the Celtics to the NBA title in 2008, and to the finals in 2010, when they lost to the Los Angeles Lakers.

“Today, the basketball gods smiled on the Nets,” Nets principal owner Mikhail Prokhorov said in a statement. “With the arrival of Kevin Garnett and Paul Pierce, we have achieved a great balance on our roster between veteran stars and young talents. This team will be dazzling to watch, and tough to compete against.”

Garnett holds averages of 19.1 points, 10.5 rebounds, 3.9 assists and 1.5 blocks in 1,323 career games over 18 NBA seasons. He’s also played 131 playoff games and has averaged 19.2 points with 11.1 rebounds and 3.5 assists in the postseason.

A 15-time All-Star, Garnett was selected as the NBA MVP during the 2003-04 season with the Minnesota Timberwolves.

Pierce, a 10-time All-Star, played the first 15 seasons of his career with the Celtics and ranks fifth all-time in NBA history in career three-pointers made with 1,823.

The Celtics acquired Gerald Wallace, Kris Humphries, MarShon Brooks, Kris Joseph, Keith Bogans and first-round picks in 2014, 2016 and 2018 in the deal.

“We are really excited to welcome Gerald, Kris, Keith, MarShon and Kris to the Celtics organization,” said new Celtics coach Brad Stevens, who is making the jump to the NBA after guiding the successful Butler University program.

“They collectively bring a great deal of versatility, unique skill sets and production to our roster. I cannot wait to get to work with them.”