Question: Who is a songwriter and musician as well as lead singer, Minoru Niihara or Robert Plant?

Context paragraphs:
Fate of Nations: Fate of Nations is Led Zeppelin singer Robert Plant's sixth solo album.  It was released in 1993 and re-released in a remastered edition on 20 March 2007.  It features former Cutting Crew guitarist Kevin Scott MacMichael.  The lead singer of Clannad, Máire Brennan is featured on the track "Come Into My Life".  The song "I Believe" is a tribute to Robert Plant's late son, Karac.

Michael Landau: Michael Landau (born June 1, 1958) is an American musician, engineer, and record producer.  He is a prolific session musician and guitarist who has played on a large number of albums since the early 1980s with artists as varied as Boz Scaggs, Minoru Niihara, Joni Mitchell, Seal, Michael Jackson, James Taylor, Helen Watson, Richard Marx, Steve Perry, Pink Floyd, Roger Daltrey, Glenn Frey, and Miles Davis.  Landau, along with fellow session guitarists Dean Parks, Steve Lukather, Michael Thompson and Dann Huff, played on many of the major label releases recorded in Los Angeles from the 1980s–1990s.  He has released music with several record labels including Ulftone Music and Tone Center Records, a member of the California-based Shrapnel Label Group.

The Ocean (Led Zeppelin song): "The Ocean" is a song by English rock band Led Zeppelin, from their 1973 album "Houses of the Holy".  The ocean is a metaphor for the "sea of heads" faced by lead singer Robert Plant "in the auditoriums", according to the group's biographer Dave News.

Minoru Niihara: Minoru Niihara (二井原 実 , Niihara Minoru ) (born March 12, 1960 in Osaka, Japan) is the original and current lead singer of the Japanese heavy metal band, Loudness.

Sly (band): Sly was a Japanese heavy metal band formed in 1994 by former members of popular groups of the Japanese metal scene.  The line-up included singer Minoru Niihara and drummer Munetaka Higuchi (Loudness), guitarist Shinichiro Ishihara (Earthshaker) and bassist Koichi Terasawa (Blizzard).  Sly disbanded in 1998, with Niihara and Higuchi re-joining Loudness in 2000 and Ishihara taking part in the reformation of his former group Earthshaker in 1999.

Robert Plant: Robert Anthony Plant, {'1': ", '2': ", '3': ", '4': "} (born 20 August 1948) is an English singer, songwriter, and musician, best known as the lead singer and lyricist of the rock band Led Zeppelin.

The Shaken 'N' Stirred Tour: The Shaken 'N' Stirred Tour was a concert tour by Robert Plant, the former lead singer of the British rock group Led Zeppelin, in North America and the United Kingdom in 1985.  The tour started on June 9, 1985, in Vancouver, British Columbia, and ended on August 10, 1985, in London.

The Honeydrippers: The Honeydrippers were a rock and roll band of the 1980s, deriving their name from Roosevelt Sykes, an American blues singer also known as "Honeydripper".  Former Led Zeppelin lead singer Robert Plant formed the group in 1981 to satisfy his long-time goal in having a rock band with a heavy rhythm and blues basis.  Formed originally in Worcestershire, the band went on to record an EP in the US.  In addition to Plant, the band was composed of fellow former Led Zeppelin member Jimmy Page; Jeff Beck (a former Yardbirds member like Page); and other friends and well-known studio musicians.  They performed in a concert at Keele University in 1981.  The band released only one recording, an EP titled "", on 12 November 1984.

Jealousy (Loudness EP): Jealousy is an EP by Japanese band Loudness.  It was released in May 1988 only in Japan, a market that the band felt to have neglected in favour of American audiences.  It would also mark the final recording with the classic line-up, until "Spiritual Canoe" in 2001.  Singer Minoru Niihara left the band after the end of the domestic tour promoting this release.  The song "Long Distance Love" would later be reworked for the "On the Prowl" album, with vocals by American singer Mike Vescera.

Carry Fire: Carry Fire is the eleventh solo album by English singer, songwriter and musician Robert Plant, due to be released on 13 October 2017 on Nonesuch/Warner Bros.  Records.  It is Plant's second studio album with the Sensational Space Shifters serving as his backing band, although the name of the band is not credited on the front cover.

Supporting paragraphs: Minoru Niihara Robert Plant
Answer: Robert Anthony Plant