Question: Which rock band released the songs "Hello, Goodbye" and "I Am the Walrus"?
Context: Mathien is a Midwestern funk rock band named after lead singer and guitarist Chris Mathien.  Chris wrote, produced, and played all the parts on his first album "Head, Heart & Hands" (2007).  To form a live band Chris met with bassist Mike Schiff and drummer Aaron Bouslog and formed the group in Carbondale, Illinois, at Southern Illinois University.  They would later be joined by keyboardist George Jackson after relocating to Chicago, Illinois.  Lee England Jr. on violin was also added as a guest for the recording of the album "Hello, Again" (2009).  The band played a packed House of Blues in Chicago to kick off the album and tour.  With songs like "Little Richard", "Dirt That I Do","Goodbye", "Remember" and "We Don't Need to Make Love, to Know That We've Got it" the band had built a strong fan base and played shows on a 2009–2010 tour.  2011 brought some changes with the band for the recording of "The Night I was an Alpha Male" (2011).  George Jackson was out and Peter Wilkins joined the band on keyboards.  They kicked off with an album release party at House of Blues again and toured in the Midwest.  The band also broke into college radio playlists across the country; radio support came from North Central College WONC-FM in Naperville IL and Findlay College WLFC-FM in Findley, Ohio, and many others.  The title track received heavy air play plus songs like "Jamie's Son", "Betaman", "Rub It In", "The Hold" and the huge crowd favorite "Lettuce Head".  2012 the band changed drummers and welcomed Omar Jahwar to the band, Mathien began a midwest tour during 2012 building a fan base at every show they played.  Later that year Chris Mathien was on WONC-FM's Local Chaos radio show and said the band will be recording a new album for release in 2013. Pernice Brothers are an indie rock band.  Formed by Joe Pernice in 1996 after the breakup of his old band, the Scud Mountain Boys, and including Joe's brother Bob Pernice (hence the 'Pernice Brothers'), the band recorded their first album, "Overcome by Happiness", for Sub Pop in 1998.  After a 3-year hiatus (during which Joe Pernice recorded under his own name and as Chappaquiddick Skyline), Pernice Brothers returned in 2001 with "The World Won't End"; after parting with Sub Pop, the album was released on Pernice's own label, Ashmont Records, co-owned with his long-time manager Joyce Linehan, which in 2003 released "Yours, Mine and Ours".  After a 2004 tour, the band released their first live album in early 2005, "Nobody's Watching/Nobody's Listening", and, in June of the same year, released their fourth studio album, "Discover a Lovelier You".  The band released "Live a Little", their fifth studio album, in October 2006. " Goodbye, Killer" was released in June 2010.  The band is currently at work on a new album, but no release date has been decided.  The band's songs are characterized by lilting melodies and intelligent lyrics. The Poster Boy were a Hungarian indie rock band from Budapest, Hungary.  The band's line-up was Imre Poniklo from the Budapest-based indie-rock band Amber Smith, Noel R. Mayer from the alternative rock band, The Walrus, and Michael Zwecker from the Pécs-based alternative rock band Kispál És A Borz.  The band members decided to form a band while chatting about the Hungarian indie scene in a bar in Budapest.  In a couple of months they wrote several songs which were recorded in late 2011. The discography of Scottish rock band The Twilight Sad consists of four studio albums, four compilation albums, eleven singles, and five extended plays (EPs).  The band currently consists of James Graham (vocals), Andy MacFarlane (guitar, producer), and Mark Devine (drums).  The Kilsyth-based band formed in 2003 and were signed to Fat Cat Records when Alex Knight, co-founder of the label, went to Glasgow to watch the band perform their third gig and signed them on the spot.  The band released their debut EP "The Twilight Sad" in November 2006 in the United States only, followed by their debut album "Fourteen Autumns & Fifteen Winters" in April 2007, which garnered widespread critical acclaim.  The album spawned two singles, "That Summer, at Home I Had Become the Invisible Boy" in April, and "And She Would Darken the Memory" in July.  The following year, the band released "Here, It Never Snowed.  Afterwards It Did", a mini-album of reworked versions of songs from "Fourteen Autumns & Fifteen Winters" and two non-album tracks, inspired by stripped-down live performances.  A collection of live versions and previously unreleased tracks entitled "Killed My Parents and Hit the Road" was released in December 2008.  The Twilight Sad's second studio album, "Forget the Night Ahead", was released in September 2009 to further acclaim and marked a shift in the band's direction towards a darker and more streamlined sound.  The album produced three singles: "I Became a Prostitute" in August 2009, "Seven Years of Letters" in October 2009, and "The Room" in April 2010.  Founding bassist Craig Orzel left the band in February 2010, and the band released "The Wrong Car" EP in September of that year. "Blue Lady" is a song released by the band Hello Sailor in 1977 as part of their "Hello Sailor" album.  The New Zealand band released it as one of their first songs as written by the guitarist and lead vocalist Graham Brazier.  It reached number thirteen on the New Zealand Singles Charts. "I Am the Walrus" is a song by the Beatles released in November 1967.  It was featured in the Beatles' television film "Magical Mystery Tour" ("MMT") in December of that year, as a track on the associated British double EP of the same name and its American counterpart LP, and was the B-side to the number 1 hit single "Hello, Goodbye".  Since the single and the double EP held at one time in December 1967 the top two slots on the British singles chart, the song had the distinction of being at number 1 and number 2 simultaneously. "Hello, Goodbye" is a song by the English rock band the Beatles, written by Paul McCartney and credited to Lennon–McCartney.  Backed by John Lennon's "I Am the Walrus", it was issued as a non-album single in November 1967, the group's first release since the death of their manager, Brian Epstein.  The single was commercially successful around the world, topping charts in the United States, the United Kingdom, Canada, Australia and several other countries. Hello Dave is a classic rock band from Chicago, Illinois.  They have released a total of six albums.  "Hello Dave" was the debut album featuring songs such as "Melissa", "No Way", and "Gracie".  "16 Tons" was their next album featuring the songs "16 Tons" and "Fine Young Thing".  The next album that Hello Dave released was titled "West", which was designed as an album ideal for taking road trips.  Songs on this album include "Golden", "Mountains", and "Biminy". Black Veil Brides, also known as Black Veil Brides IV, is the self-titled fourth studio album by American rock band Black Veil Brides.  It was released through Lava Records/Universal Republic Records on October 27, 2014.  The first track on the album, "Heart of Fire", was aired on BBC Radio 1's Rock Show in September, then "Faithless" was uploaded onto YouTube on September 10.  Also, as of September 16, 2014, the album was released on iTunes for pre-order.  Clips of the songs "Devil in the Mirror" and "Goodbye Agony" were posted on YouTube on the 18th and 19th, as well as "Goodbye Agony" airing on BBC Radio 1's Rock Show on the same day of its uploading.  The music video for "Goodbye Agony" was released on October 31, 2014. Ben & Jason were a singer-songwriter duo from London consisting of Ben Parker and Jason Hazeley.  Formed in 1998, they released three albums on Go!  Beat/Universal: "Hello", "Emoticons" and "Ten Songs About You".  When they were dropped from their major label deal, the band released their final album, "Goodbye", on the independent label Setanta.
Answer: Beatles