Question: Which American musician started their carrer by fronting the band Tsunami Bomb, Michael Bishop or Emily Whitehurst?

Context paragraphs:
Tsunami Bomb: Tsunami Bomb are a punk rock band from Petaluma, California that was active between 1998 and 2005 and reunited at the end of 2015.  They have released two studio albums and four EPs, three of which were collected and reissued as a full-length album.  They were founded by Dominic Davi who left in 2003 and underwent numerous lineup changes, containing almost no original members by the time of their disbandment in 2005.  Their lineup upon disbanding consisted of Emily Whitehurst, Jay Northington, Matt Mckenzie, and Gabriel Lindeman.  The band gave a reunion performance on January 17, 2009 in Petaluma.

Tomato Head Records: Tomato Head Records was an independent record label started by Chuck Phelps after his split with the ska punk band Skankin' Pickle and Dill Records.  The label most notably released the debut EP of Tsunami Bomb, "The Invasion from Within! " and the Luckie Strike EP, "Future is Turning".  The label is now in indefinite hiatus.

Kung Fu Records: Kung Fu Records is an American independent record label founded in 1996 by Joe Escalante and Warren Fitzgerald of the punk rock band The Vandals.  Founded in order to release a record by the Riverside, California band Assorted Jelly Beans, the label soon grew to include a roster of notable artists such as The Ataris, Ozma, Tsunami Bomb, and The Vandals themselves.  In 2000 Escalante started Kung Fu Films as a subsidiary of the music label in order to release DVDs of live concerts, music videos, band documentaries, and independent films.  In 2005 Kung Fu also spawned the spinoff label Broken Sounds Records, focusing on hardcore releases.

The Definitive Act: The Definitive Act was the second and final studio album by Tsunami Bomb, released in 2004.  The band also has four Extended Play albums released between 1998 and 2001.

Michael Bishop (bassist): Michael Bishop (born September 7, 1968) is an American musician.

The Action Design: The Action Design is an American rock band formed in Petaluma, California, after the breakup of the former punk rock band Tsunami Bomb.  Emily Whitehurst and Matt McKenzie came together to produce a new band, self-described as "a refreshing mix of the band's punk rock roots infused with hard hitting dance rhythms and catchy basslines wrought with think memorable vocal hooks".  In January 2011, on their official Facebook page, the band announced its members are currently focusing on other musical projects rather than The Action Design.

Emily Whitehurst: Emily Grace Whitehurst (born July 23, 1979), also known as Agent M, is an American singer, songwriter, composer, musician, and record producer.  In 1998, she began her music career by fronting the punk rock band Tsunami Bomb.  After Tsunami Bomb disbanded in 2005, she co-founded and fronted the Action Design; a rock group.  Since 2012, Whitehurst has been working on her synth-driven, indie pop project, Survival Guide.

The Ultimate Escape: The Ultimate Escape is the first full-length album by Tsunami Bomb, released in 2002.  "Take the Reins" was the first single from the album.  It also has enhanced CD-ROM features including a live video of the band playing their song "No Good Very Bad Day".  The album also spawned the first featured video of the band for the single "Take the Reins".

Daniel Sproul: Daniel Sproul (born May 24, 1977) is a guitarist of American rock band Rose Hill Drive, Fire Kills & Tsunami Bomb.  He is the brother of bassist and vocalist Jacob Sproul.

Mayhem on the High Seas: Mayhem on the High Seas is an EP by the punk rock band Tsunami Bomb.  Mayhem on the High Seas was the second album released on the Checkmate Records label, founded by AFI bassist Hunter Burgan.  The album was the first complete record released by the band, after their split-EP B-Movie Queens with Plinky.

Supporting paragraphs: Michael Bishop (bassist) Emily Whitehurst
Answer: Emily Grace Whitehurst