Question: Happy Pledis 2nd Album included the singer from the boy group formed by what company in 2012?

Context paragraphs:
Seventeen discography: This is the discography of South Korean boy group Seventeen.  Seventeen (Hangul: 세븐틴), also stylized as SEVENTEEN or SVT, is a South Korean boy group formed by Pledis Entertainment in 2015.  They have released one album and four EPs.

NU'EST: NU'EST (Hangul: 뉴이스트 ; acronym for New Establish Style Tempo) is a South Korean boy group formed by Pledis Entertainment in 2012.  The group debuted on March 15, 2012, with their digital single "Face".  The group consists of JR, Aron, Baekho, Minhyun, and Ren.  They have released two studio albums, one Korean and one Japanese, as well as five EPs.

The Best of After School 2009-2012: Korea Ver.: The Best of After School 2009-2012: Korea Ver.  (stylized as THE BEST OF AFTERSCHOOL 2009-2012 -Korea Ver. -) is the first greatest hits album by South Korean girl group After School.  It was released on March 27, 2012 by Avex Trax along with the groups first live DVD, "After School First Japan Tour 2012 - Playgirlz-".  The album contains all of After School's singles.  The album also includes songs from A.S. Red & Blue and both "Happy Pledis" singles from 2010 and 2011.  The limited edition version comes with a DVD featuring all of After School's music videos up to 2012.

Happy Pledis 2nd Album: Happy Pledis 2nd Album is a charity single by the South Korean music label Pledis Entertainment's artists Son Dam-bi, Kahi, After School, NU'EST's JR and Baekho, Hello Venus's Yoo Ara and Lime and Pre-School Girl Park Jung-hyun.  The album was released under the name "Happy Pledis 2nd Album" and is a charity release.  As NU'EST and Hello Venus hadn't officially debuted then, the album doesn't include all the members of the two groups, and NU'EST went by the name "Pledis Boys".  The album consisted of tracks "Love Letter", "Winter’s Tale", and "How Are You".

Confusa e felice: Confusa e felice is the 2nd album by Italian singer-songwriter Carmen Consoli, issued in 1997.  The album takes its name from the song "Confusa e felice" ("Confused and happy"), presented at Sanremo Music Festival 1997 and eliminated from the competition after the first night.  The album was certificated platinum and sold over 120,000 copies.

Vibe (band): Vibe (바이브 ) is a South Korean R&B group.  They released their first album in 2002 as a trio of two male singers (Yoon Min-soo and Ryu Jae-hyun) and a rapper (Yoo Sung Gyu).  Their first single "미워도 다시 한번 (Although it is hateful, again)" was a success and a huge hit for the group making them very popular.  Their second single "Promise U" was also very successful.  Their 2nd album came out in November 2003 and their first single "오래 오래 (Long Long Time)" was a huge hit as was their second single "사진을 보다가 (While Looking at the Picture)".  This cemented their status as a popular group and consistent hit makers.  During the hiatus between their 2nd and 3rd albums, the rapper left the group citing that he wanted to pursue his own style of music, taking on the name Noblesse.  Vibe went on to release their 3rd album in 2006 which became a success with their two hits "그 남자, 그 여자 (That Man, That Woman)" and "술이야 (Drinking)".  Vibe release their 4th album and their title song was "다시 와주라" (Comeback Again).  In 2011, Yoon Min-soo joins the cast of MBC I Am a Singer, and debut singing "그 남자, 그 여자 (That Man, That Woman)" and "술이야 (Drinking)", he obtains the 2nd place behind Insooni (인순이).

Jay Hong: Jay Hong (born June 19, 1986) is a South Korean singer-songwriter and producer.  He debuted as a member of duo named Blue Marble in 2011, and he released his first solo single "Without You" in 2012.  "Without You" was included in the South Korean film "Don't Cry Mommy".  He performed mandatory military service from 2014 to 2015.  He produced Taiwanese idol group JPM's 2nd album 365 and became famous for producing "HEART" and "Love Departure" (爱出发) for Chinese idol group TFBoys' debut album.

Seventeen (band): Seventeen (Hangul: 세븐틴 ), also stylized as SEVENTEEN or SVT, is a South Korean boy group formed by Pledis Entertainment in 2015.  The group consists of thirteen members who are separated into three sub-units, each with different areas of specialization: a 'Hip-Hop Unit', 'Vocal Unit', and 'Performance Unit'.  They have released one studio album and four extended plays.

Pristin: Pristin (Hangul: 프리스틴 ; stylized as PRISTIN and formerly known as Pledis Girlz) is a South Korean girl group formed by Pledis Entertainment in 2016.  The group is composed of ten members: Nayoung, Roa, Yuha, Eunwoo, Rena, Kyulkyung, Yehana, Sungyeon, Xiyeon and Kyla.  Most of them appeared on the television show "Produce 101" and, as the prize for becoming two of the top contestants, Nayoung and Kyulkyung went on to debut as part of the project girl group I.O.I, before reuniting with the other members to debut as Pristin on March 21, 2017, with the first mini album "Hi!  Pristin".  Like their labelmate group Seventeen, Pristin is known for writing and composing their own music.

Happy Pledis 1st Album: "Happy Pledis 1st Album" is a charity single by the South Korean girl group After School.  The album was released under the name "Happy Pledis" and is a charity release.  The album didn't include rapper Bekah, as she was on holiday during promotions.  Songs "Love Love Love" and "Someone is You" were both promotional singles from the album.  The title track, "Love Love Love", was written by After School's main vocalist, Raina.

Supporting paragraphs: Happy Pledis 2nd Album NU'EST
Answer: Pledis Entertainment