Question: Are Aimee Echo and Courtney Taylor-Taylor both singers?

Context paragraphs:
Dig!: Dig!  is a documentary film directed by Ondi Timoner, and produced by Timoner, Vasco Nunes and David Timoner.  Compiled from seven years of footage, it contrasts the developing careers and love–hate relationship of the bands The Dandy Warhols and The Brian Jonestown Massacre and the bands' respective frontmen Courtney Taylor-Taylor and Anton Newcombe.  It won the Documentary Grand Jury Prize at the 2004 Sundance Film Festival.

Human Waste Project: Human Waste Project was a band from Huntington Beach, California with Aimee Echo on vocals, Mike Tempesta on guitar, Jeff Schartoff on bass, and Scott Ellis on drums.  They released their album E-lux in 1997 and broke up soon after.

Charles Normal: Charles Edward Norman (Born 8 March 1965), known by the stage name Charles Normal, is an American record producer, engineer, songwriter and multi-instrumentalist.  He is perhaps best known for his work with Frank Black, Pete Yorn, Jetboy, and his brother, musician Larry Norman.  He has collaborated with Guns N' Roses, Steve Jones, Isaac Brock, Courtney Taylor-Taylor, and actor Kiefer Sutherland.

Mark Englert: Mark Englert is an American musician known as a guitarist for Dramarama since 1982.  He has appeared with Dramarama on "Late Night with David Letterman" and "The Tonight Show".  He has worked with a number of established musicians including Benmont Tench from Tom Petty and The Heartbreakers, and Clem Burke of Blondie.  Mark a.k.a. "Mr. E. Boy", was a founding member of Hatful of Rain, a defunct band established in Portland, Oregon during the mid-1990s, which featured singer/songwriter John Lowery and at one time included Courtney Taylor-Taylor of The Dandy Warhols on drums.  The band went on to receive stellar reviews from critics around the globe, but failed commercially due to their short term run of just a few months prior to their break-up.  Mark has been known to play guitar for many underground artists and has recently put out a few of his own solo records on his own label Phat Boris Records.

One Model Nation: One Model Nation is a graphic novel by Jim Rugg and Dandy Warhols frontman Courtney Taylor-Taylor about a fictional 1970s German krautrock band.  It was released on 11 November 2009.  An accompanying studio album titled "Totalwerks, Vol.  1 (1969–1977)", a fake greatest hits album by the fictional band, was released on 31 January 2012.

The Start (American band): theStart (stylized as theSTART) is an American alternative rock band from Los Angeles, California.  Their current lineup includes Aimee Echo, Jamie Miller, Lance Webber and Chelsea Davis.

Courtney Taylor-Taylor: Courtney A. Taylor (born July 20, 1967), known as Courtney Taylor-Taylor, is an American singer-songwriter from Portland, Oregon.  He is the lead singer and guitarist of alternative rock band The Dandy Warhols, a band he co-founded.  Taylor-Taylor has written the majority of the band's songs.

Bohemian Like You: "Bohemian Like You" is a song by American alternative rock band The Dandy Warhols.  The song was written by frontman Courtney Taylor-Taylor after seeing a woman pull up in her car to the traffic lights outside his apartment.  It was released as the second single from the band's third studio album, "Thirteen Tales from Urban Bohemia", in August 2000.

The Dandy Warhols: The Dandy Warhols are an American alternative rock band, formed in Portland, Oregon in 1994 by singer-guitarist Courtney Taylor-Taylor and guitarist Peter Holmström.  They were joined by keyboardist Zia McCabe and drummer Eric Hedford.  Hedford left in 1998 and was replaced by Taylor-Taylor's cousin Brent DeBoer.  The band's name is a play on the name of American pop artist Andy Warhol.

Aimee Echo: Aimee Echo is an American vocalist.  She is the ex-frontwoman of Human Waste Project and now the vocalist of TheStart and Normandie.

Supporting paragraphs: Aimee Echo Courtney Taylor-Taylor
Answer: yes