Miller attended Mason CountyHigh School, where he averaged 19.9 points, 7.9 rebounds, 3.6 assists and 2.9 steals per game and led the team to a state championship in 2008. After his senior season in high school, Miller was named the KHSAA's men's basketballplayer of the year, commonly known as "Kentucky Mr. Basketball". Considered a four-star recruit by Rivals.com, Miller was listed as the No. 8 small forward and the No. 42 player in the nation in 2008.
College career
Following Kentucky's 2012 national championship win, Miller was chosen to present a commemorative Kentucky jersey and championship ring to President Barack Obama during the team's visit to the White House on May 4, 2012. During the visit, Obama noted that Miller is the only player from Kentucky to have been named Kentucky's "Mr. Basketball", win a KHSAA state championship and claim an NCAA title with the University of Kentucky. Miller finished his college career having played more games for the University of Kentucky than any other player. The Wildcats' championship game and Miller's last collegiate match was his 152nd appearance for the team, surpassing Wayne Turner's previous record of 151 games. He and Deon Thompson of North Carolina are currently tied for fourth place in career games in NCAA Division I men's play, and have the most games among those who played in exactly four seasons.
Miller was selected with the 46th overall pick in the 2012 NBA draft by the New Orleans Hornets. On August 22, 2012, he signed a multi-year deal with the Hornets. On December 31, 2012, Miller was assigned to the Iowa Energy. On January 27, 2013, he was recalled by the Hornets. In April 2013, the Hornets were renamed the Pelicans. On July 25, 2014, Miller re-signed with the Pelicans. On November 30, 2014, he was waived by the Pelicans. On January 16, 2015, Miller was opted over another D-League player for a position on the Clippers.
On February 24, 2015, Miller signed with Brose Bamberg of Germany for the rest of the 2014–15 season. On July 28, 2015, he re-signed with Brose Baskets for one more season. On June 7, 2016, he signed a two-year contract extension with Bamberg. On July 19, 2017, he parted ways with Bamberg in order to return to the NBA.
Second stint with New Orleans Pelicans (2017–present)
On July 27, 2017, Miller signed with the New Orleans Pelicans, returning to the franchise for a second stint. On November 13, 2017, he scored a career-high 21 points in a 106–105 win over the Atlanta Hawks. On December 31, 2018, Miller scored 13 of his 21 points in the fourth quarter of the Pelicans' 123–114 win over the Minnesota Timberwolves. On January 24, 2019, he matched a career high with 21 points in a 122–116 loss to the Oklahoma City Thunder. On July 3, 2019, after becoming a free agent he signed a two year contract with the New Orleans Pelicans, a two year deal worth $14.25 million. On August 29, 2019, the Pelicans announced that Miller would be out indefinitely after undergoing surgery to repair a ruptured right Achilles tendon.
