Question: What American vocalist is famous for co-founding the Bangles and collaborating with Matthew Sweet?

Context paragraphs:
Under the Covers, Vol. 3: Under the Covers, Vol.  3 is the third collaboration between alternative rock artist Matthew Sweet and Bangles singer Susanna Hoffs.  Released by Shout!  Factory on November 12, 2013, it contains 14 cover versions of favorite songs of the 1980s.

Albert Hammond Jr.: Albert Louis Hammond Jr. ("né" Hammond III; born April 9, 1980) is an American guitarist, singer, songwriter and music producer.  He is most famous for his role as rhythm and lead guitarist, as well as occasional keyboard player and backing vocalist, in the American rock band The Strokes.  He is the son of singer-songwriter Albert Hammond (best known for his 1972 hit single "It Never Rains in Southern California").  Hammond Jr. released his debut album "Yours To Keep" in 2006 and followed up with "¿Cómo Te Llama? " in 2008 and his EP, "AHJ" in 2013.  His third solo album, "Momentary Masters", was released through Vagrant Records on July 31, 2015.  The Beach Boys, Buddy Holly, Frank Black, Guided By Voices, John Lennon, Matthew Sweet and The Velvet Underground are often cited as his major influences.

Time Capsule: Best of 90/00: Time Capsule: The Best of Matthew Sweet 90/00 is a compilation album by alternative rock musician Matthew Sweet.  It was released on Volcano Entertainment in 2000.

Sweetheart of the Sun: Sweetheart of the Sun is the fifth studio album by American pop rock band the Bangles, released on September 27, 2011.  It is the band's second album since their 2003 reunion, and their first as a trio after the departure of longtime member Michael Steele.  The twelve-song album was co-produced by the Bangles and Matthew Sweet.

Under the Covers, Vol. 2: Under the Covers, Vol.  2 is the second collaboration between alternative rock artist Matthew Sweet and Bangles singer Susanna Hoffs.  Released by Shout!  Factory on July 21, 2009, it contains 16 cover versions of favorite songs from the 1970s.

Velvet Crush: Velvet Crush is an American power pop band from Providence, Rhode Island, United States, that achieved prominence in indie-rock circles in the early- and mid-1990s.  The band broke up in 1996 but re-formed in 1998 and have continued to record, releasing their most recent album in 2004.  Vocalist/bassist Paul Chastain and drummer Ric Menck are the band's core members, having previously worked together as Choo Choo Train, Bag-O-Shells, and The Springfields, and they share singing and songwriting duties.  Guitarist Jeffrey Borchardt (of Honeybunch) played on the band's first three albums, "In the Presence of Greatness", "Teenage Symphonies to God", and "Heavy Changes".  "In the Presence of Greatness" was produced by Matthew Sweet, while the second and third albums were produced by Mitch Easter.

Susanna Hoffs: Susanna Lee Hoffs (born January 17, 1959) is an American vocalist, guitarist and actress.  She is best known as a co-founder of The Bangles.

The Pillowcase: The Pillowcase is a collaboration EP between alternative rock artist Matthew Sweet and Bangles singer Susanna Hoffs.  Released by Shout!  Factory in 2006 in collaboration with Parasol Records as a double-7" vinyl, it contains 4 cover versions of favorite songs from the 1960s.  It was designed as a companion piece to Sweet and Hoffs' album, Under the Covers, Vol.  1.  Two of the tracks on the EP appear on that album, while the other two tracks were exclusive to the EP.

A Fragile Tomorrow: A Fragile Tomorrow is an alternative/powerpop band from Charleston, South Carolina, formerly from Montgomery, New York.  The group formed in 2003 and included brothers Sean Kelly, Dom Kelly, and Brendan Kelly.  In 2006, bassist Shaun Rhoades joined the group.  The band has put out four studio albums, most recently the critically acclaimed "Make Me Over".  The band has shared the stage with/opened for Indigo Girls, The Bangles, Matthew Sweet, Toad the Wet Sprocket, Garrison Starr, Antigone Rising, K's Choice, Mac McCaughan of Superchunk, Drivin N Cryin, Continental Drifters, Blues Traveler, The Cowsills, Danielle Howle, Susan Cowsill, Amy Ray, and more.

Under the Covers, Vol. 1: Under the Covers, Vol.  1 is the first collaboration between alternative rock artist Matthew Sweet and Bangles singer Susanna Hoffs.  Released by Shout!  Factory in 2006, the album contains 15 cover versions of favorite songs from the 1960s and 1970s.  The album was a result of their mutual love for songwriting from the 1960s.  Matthew Sweet and Susanna Hoffs decided to record an album together in dedication of that era consisting of only cover versions.

Supporting paragraphs: Under the Covers, Vol. 1 Susanna Hoffs
Answer: Susanna Hoffs