|Name:||Jung Min-sung (정민성)|
|Country of Birth:||South Korea|
|Birthday:||May 5, 1993|
|Team:||SK Telecom T1|
|Peak League:||Challenger (KR)|
|Alternate IDs:||Cj Entus 빠른별, Azubu RapidSTAR, MiG RapidStar|
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|This player has retired from competitive League of Legends.|
Jung "RapidStar" Min-sung (정민성) is the Coach for SK Telecom T1.
He started gaming when PC gaming was getting popular in Korea but disliked Starcraft and preferred Fortress, a tank shooting game. After a while he found Warcraft and Chaos which he played for a long time. He found and started playing League of Legends because it was a "foreign" game. He started playing around the time
Lux came out and started playing
Blitzcrank. He didn't really like Blitzcrank that much and moved on to
Annie. He saved up to later buy
- Attributes the strength of Frost to their closeness as players and friends; liking them to a second family.
- Believes that the lack of a hierarchy within the team is important as it allows every player to contribute to analysis and game planning.
- Favorite champions are:
Cassiopeia,  and
- Koreans often said "Yeok-ppa-che" regarding his play, which roughly means "As expected, RapidStar is the best". It was said as mockery at first, but after he had shown great
Anivia performances on Azubu The Champions Summer 2012 Final against CLG EU; it became a true expression of respect.
- The name RapidStar is represented in the Korean characters, Min(fast, swift), and Seong(Star).
Lux in competitive League of Legends.
- Bravely chooses
Anivia to against the best
Anivia player Froggen.
- Awarded Best Mid Laner at 2012 Korean e-Sports Awards. 
|2014-01-03||PANDORA.TV Champions Winter 2013-2014||5 - 8th||
||0 : 3|
|2013-08-28||HOT6iX Champions Summer 2013||4th||
||2 : 3|
|2013-06-05||OLYMPUS Champions Spring 2013||4th||
||0 : 3|
|2013-03-09||IEM Season VII - World Championship||2nd||
||1 : 3|
|2013-02-22||OGN Club Masters||4th||
||0 : 3|
|2013-02-02||OLYMPUS Champions Winter 2012-2013||2nd||
||0 : 3|
|2013-01-20||IEM Season VII - Global Challenge Katowice||3 - 4th||
||0 : 2|
- September 14th - RapidStar Interview - Group Drawings, Korean Players in EU and NA, and Korean Team Predictions (KR/EN)(video) with GameSpot
- February 7th - League of Legends - Pro Player Pick: Rapidstar Picks Lux (video) with Riot Games
- May 20th - CJ Entus Frost Rapidstar AMA with Reddit
- July 31th - Mid Lesson with Faker and RapidStar with Korea Riot Games
- Azubu Player Site teamazubu.com
- "MiG Frost Team Interview"
- "LOL Thisisgame.com official Q&A"
- Result of 2012 Korean e-Sports Awardsinven.com.kr