Question: Olga Arefieva was the student of the singer who was best known for his rendition of what song?

Context paragraphs:
Lani Hall: Lani Hall (born November 6, 1945) is an American singer, lyricist, author, and the wife of Herb Alpert.  From 1966 to 1971 she performed as lead vocalist for Sérgio Mendes & Brasil '66.  In 1972 she released her first solo album "Sundown Lady", but she may be best known for her rendition of the theme song to the 1983 James Bond film "Never Say Never Again".  In 1986 she was awarded her first Grammy Award for "Es Fácil Amar" as "Best Latin Pop Performance."  After that year she largely retired, resurfacing in 1998 with the solo album "Brasil Nativo".  She has the distinction of recording over 22 albums in three different languages and has released three albums, "Anything Goes", "I Feel You" and "Steppin' Out", on which she performs alongside her husband Herb Alpert.  She received her second Grammy Award in 2013 as producer for the album, "Steppin' Out".

Nicci Gilbert: Nichole "Nicci" Gilbert (born July 8, 1970) is an American R&B singer.  She is mainly known for being the former lead vocalist of an American female R&B girl-group Brownstone who rose to fame in the mid 1990s best known for their 1995 hit single "If You Love Me", which was nominated for a Best R&B Performance Grammy Award. " Grapevyne" and "Pass the Lovin'" also brought them some success, as well as their rendition of "I Can't Tell You Why", a song originally recorded by The Eagles.

Debbie Burton: Debbie Burton was an American singer.  She is best known for dubbing the singing voice of the young Baby Jane Hudson (played by child actress Julie Allred) in the 1962 film "What Ever Happened to Baby Jane? ", singing the song "I've Written a Letter to Daddy".  Burton also sang a duet with Bette Davis, the rock and roll song "What Ever Happened to Baby Jane?" , written by Frank DeVol and Lukas Heller.  It was released as a promotional single, with Burton's rendition of "I've Written a Letter to Daddy" on the flipside.  An instrumental version of "What Ever Happened to Baby Jane?"  can be heard in the movie.

Oritse Femi: Oritsefemi Majemite Ekele (born January 5, 1985), popularly known by his first name Oritse Femi, is a Nigerian singer-songwriter and performer.  He is best known for his remake of Fela Kuti's "Double Wahala" song.  His rendition of the song earned him two nominations at the 2014 City People Entertainment Awards, winning the award for Most Popular Song of the Year.  He also won the Indigenous Artist of the Year award at the 2014 Nigeria Entertainment Awards.  In 2014, he released the remix for his version of the song featuring D'banj.

Lev Leshchenko: Lev Valerjanovich Leshchenko (Russian: Лев Валерианович Лещенко ; born 1 February 1942), is a Russian singer, who was best known for his rendition of "Den Pobedy" and the 1980 Summer Olympics closing ceremony theme song "Do svidanja, Moskva".

Buster Benton: Arley "Buster" Benton (July 19, 1932 – January 20, 1996) was an American blues guitarist and singer.  He played guitar in Willie Dixon's Blues All-Stars and is best known for his solo rendition of Dixon's song "Spider in My Stew."  Benton was tenacious, and despite the amputation of parts of both legs in the latter part of his lengthy career, he never stopped playing his own version of Chicago blues.

Malene Mortensen: Malene Winter Mortensen (born May 23, 1982) is a Danish singer.  She entered the Danish music scene in 2001, during the first season of "Stjerne for en aften", the Danish edition of "Star for a Night".  She made it to the finals, with her rendition of Moloko's "Sing It Back".  The following year, she entered the Dansk Melodi Grand Prix, the Danish national pre-selection for the Eurovision Song Contest.  In 2003 she released her debut album called "Paradise".  This album, revolving around modern jazz, was supported by three of Denmark's best known jazz musicians: Niels Lan Doky (piano), Niels-Henning Ørsted Pedersen (double bass) and Alex Riel (drums).

Juanita Coco: Juanita Suzanne Coco (10 December 1975 – 2 May 1993) was an Australian singer and actress best known for her role on the popular talent/variety show "Young Talent Time" in the late 1980s.  She appeared on the show from 1987 to 1988, aged 13, and was best known for her rendition of the song 'La Bamba'.  When a boy team member and a girl team member teamed up, Juanita was paired up with Joey Dee.  She replaced Vanessa Windsor on the show and was the 35th member to join the team.  The 36th was Joey Dee and the 37th was Rikki Arnot.  Then Jamie Churchill then last of all Johnnie Nuich.

Olga Arefieva: Olga Arefieva (Arefeva) (born 21 September 1967 in Verkhnyaya Salda) is a Russian singer-songwriter, poet and musician.  She graduated from Gnessin State Musical College (her teacher was Lev Leshchenko), founded band "Kovcheg" ("The Ark"), composed more than 400 songs, issued 15 music albums, and won the literary prize of the magazine "Znamya" for her poems.

Olga Souza: Olga Souza (born Olga Maria de Souza; 16 July 1968, Rio de Janeiro, Brazil) is a Brazilian singer, and dancer.  She is best known as a member of the musical project, Corona, produced by Checco "LEE MARROW" Bontempi.

Supporting paragraphs: Olga Arefieva Lev Leshchenko
Answer: Den Pobedy