Question: Which musical act has more members, Sleigh Bells or Shihad?
Context: Colours of Light is the compilation album of vocal pieces by Yasunori Mitsuda.  It was released on August 26, 2009 in Japan by Sleigh Bells.  The album is composed of 14 remastered songs from games and soundtracks that he has composed, and one piece from an album of original songs by game music composers. "I Wanna Be Your Dog" is a 1969 song by the American rock band The Stooges.  The song is included on their self-titled debut album.  Its memorable riff, composed of only three chords (G, F♯ and E), is played continuously throughout the song (excepting two brief 4-bar bridges).  The 3-minute-and-9-second-long song, with its raucous, distortion-heavy guitar intro, pounding, single-note piano riff played by producer John Cale of The Velvet Underground, and steady, driving beat, established The Stooges at the cutting edge example of the heavy metal and punk sound.  The song notably uses sleigh bells throughout. "Comeback Kid" is a song written and performed by noise pop duo Sleigh Bells, issued as the official lead single for their second album "Reign of Terror" (following the promotional single “Born to Lose”).  The song was released January 17, 2012.  On February 18, the band performed the song on "Saturday Night Live". Sleigh Bells is an American noise pop musical duo based in Brooklyn, New York, formed in 2008.  The duo consists of vocalist Alexis Krauss and guitarist Derek Edward Miller.  After signing to N.E.E.T. Recordings and Mom + Pop Music, Sleigh Bells released their debut album, "Treats", in May 2010.  Their follow-up album, "Reign of Terror", was released in February 2012.  In October 2013, the band released their third album, "Bitter Rivals" while their fourth album, "Jessica Rabbit", was released in November 2016. "Tell 'Em" is a song by American music duo Sleigh Bells from their debut album "Treats".  Written by Miller and sung by Alexis Krauss, the song is the album's opening track, and was released as its lead single. Reign of Terror is the second studio album by American noise pop duo Sleigh Bells.  The album was released on February 21, 2012 by Mom+Pop. Shihad are a rock band from New Zealand, formed in 1988.  The band consists of Jon Toogood (lead vocals, rhythm guitar), Phil Knight (lead guitar, synthesiser, backing vocals), Karl Kippenberger (bass guitar, backing vocals), and Tom Larkin (drums, backing vocals, samplers).  During their recording career, Shihad have produced five number-one studio albums, holding the title for most number one records for any New Zealand artist, alongside Hayley Westenra, and three top-ten singles in New Zealand. BUKU Music + Art Project is a New Orleans based two-day music and arts festival founded in 2012 by Winter Circle Productions and held annually at Mardi Gras World.  BUKU considers itself to be a boutique event that delivers a big festival punch without compromising its house-party vibe.  BUKU seeks to serve as a platform for the intersection of pop culture and the New Orleans underground arts community, and combines international musicians with local food vendors, local visual artists, and various surprise pop-up street performers throughout the site.  BUKU's musical tastes have been a relatively even mix of electronic dance music, hip hop music, and indie rock featuring past performances by Skrillex, Ellie Goulding, Kid Cudi, Bassnectar, The Flaming Lips, Calvin Harris, Kendrick Lamar, A$AP Rocky, Passion Pit, Nas, Explosions in the Sky, Major Lazer, Alt-J, TV on the Radio, Chromeo, Flux Pavilion, Flosstradamus, Sleigh Bells, Earl Sweatshirt, Porter Robinson, Die Antwoord, RL Grime, Seth Troxler, Purity Ring, Jamie Jones and dozens of others. "Oh Santa!"  is a song by American singer and songwriter Mariah Carey from her second Christmas album/thirteenth studio album, "Merry Christmas II You" (2010).  Carey wrote and produced the song in collaboration with Jermaine Dupri and Bryan-Michael Cox.  It was released as the lead single from the album.  It is an up-tempo R&B song about Carey making a plea for Santa Claus to bring back her partner in time for the Christmas holidays.  Instrumentation of sleigh bells, jingle bells and hand claps.  It received a positive response from music critics, with many praising its composition and style. Jessica Rabbit is the fourth studio album by American noise pop duo Sleigh Bells.  It was released on November 11, 2016 by Torn Clean, the duo's own label, in partnership with Sinderlyn.
Answer: Shihad