Question: Which singer is part of a band with a shorter name, Rivers Cuomo or Max Bemis?

Context paragraphs:
Rivers Cuomo: Rivers Cuomo ( ; born June 13, 1970) is an American musician best known as the lead vocalist, guitarist and songwriter of the rock band Weezer.

Hebrews (album): Hebrews is the sixth full-length studio album by American rock band Say Anything.  On March 25, the band announced via their label, Equal Vision Records' blog that their new record entitled "Hebrews," titled after front-man Max Bemis's Jewish lineage, would be released on June 10, 2014.  Early on in the recording process, it was announced that the album would be self-produced by Bemis, and engineered by Garron DuPree.  On April 24, the first single from the album was released, titled "Six Six Six" via billboard.com, along with more details concerning the ambitious production and release of the upcoming record.  Most notably, front-man Max Bemis confessed that the forthcoming album features production that had been unprecedented to the band - the album features no guitars, an instead replaces traditional guitar-based riffs with orchestral string arrangements while maintaining the punk-influenced drive that has been attributed to the band in the past.

Alone II: The Home Recordings of Rivers Cuomo: Alone II: The Home Recordings of Rivers Cuomo is a compilation album by Weezer frontman Rivers Cuomo.  It is a sequel to "".  On July 24, 2008 on riverscuomo.com, an entire list entitled "The 4 and 5 star demos of river como" [sic] was posted, with certain songs designated as songs that either appeared on "", Buddyhead's "Gimme Skelter" compilation, or "Alone II".  Soon after the list was posted, the site was redirected back to Cuomo's MySpace.

Say Anything (band): Say Anything is an American rock band from Los Angeles, California.  The band was formed in 2000 by Max Bemis and his friends, and within two years, they self-released two EPs and a full-length album.

Max Bemis and the Painful Splits: Max Bemis and the Painful Splits is a side project created by Say Anything's lead singer Max Bemis in September 2010.  He has recorded six albums, titled "Max Bemis and the Painful Splits", "Max Bemis and the Painful Splits 2", "The Painful Splits Destroy", "The Painful Splits Are Multiplying", "Max Bemis and The Painful Splits Stripped Down", and "The Painful Splits Wins", respectively.

Weezer discography: The discography of Weezer, an American rock band, consists of 10 studio albums, two compilation albums, one video album, six extended plays, twenty-eight singles and twenty-four music videos. Weezer's self-titled debut studio album, often referred to as "The Blue Album", was released in May 1994 through DGC Records.  The album was a huge commercial success, peaking at number 16 on the US "Billboard" 200 and spawning the singles "Undone – The Sweater Song" and "Buddy Holly", both of which were responsible for launching Weezer into mainstream success with the aid of music videos directed by Spike Jonze.  It has sold 3.3 million copies in the United States and has been certified triple platinum by the Recording Industry Association of America (RIAA), becoming the band's best selling album to date.  Following the success of their debut album, Weezer took a break from touring for the Christmas holidays.  Lead singer Rivers Cuomo began piecing together demo material for Weezer's second studio album.  Cuomo's original concept for the album was a space-themed rock opera, "Songs from the Black Hole".  Ultimately, the "Songs from the Black Hole" album concept was dropped; the band, however, continued to utilize songs from these sessions into work for their second studio album. " Pinkerton" was released as the band's second studio album in September 1996.  Peaking at number 19 on the "Billboard" 200, it was considered a critical and commercial failure at the time of its release, selling far less than its triple platinum predecessor.  However, in the years following its release, it has seen much critical and commercial championing.

Max Bemis: Maxim "Max" Bemis ( ) is the lead singer, primary composer and primary lyricist of the band Say Anything.  He also sings alongside Chris Conley in the supergroup Two Tongues (which features band members from Say Anything and Saves the Day), plays alongside his wife Sherri Dupree-Bemis under the name Perma, and is a writer for Marvel Comics.

All My Friends Are Enemies: Early Rarities: Most songs recorded and produced by Max Bemis between the years 1999 and 2003, mostly in the Bemis household, Los Angeles California.

Alone: The Home Recordings of Rivers Cuomo: Alone: The Home Recordings of Rivers Cuomo is a compilation album by Weezer frontman Rivers Cuomo, released on December 18, 2007.  It is available as a digital release, CD release and 12" vinyl (released on January 8, 2008).  The album features home demos that Cuomo has recorded from 1992-2007.

Alone III: The Pinkerton Years: Alone III: The Pinkerton Years is a compilation album by Weezer singer Rivers Cuomo, released on December 12, 2011.  It comprises demos recorded between 1993 and 1996, when Cuomo was studying at Harvard University and writing material for the albums "Songs from the Black Hole", later abandoned, and "Pinkerton" (1996).  It is the third in Cuomo's "Alone" series of demo compilations, following "" (2007) and "" (2008).

Supporting paragraphs: Rivers Cuomo Max Bemis
Answer: Rivers Cuomo