Question: Ultimate Live Lounge ended with the Thirty Seconds to Mars cover of what Kanye West song as the winner?

Context paragraphs:
Ultimate Live Lounge: Ultimate Live Lounge was a competition run by Radio 1 in 2009 to find the best Live Lounge performance to date.  Over the previous 10 years there had been more than 500 Live Lounge sessions with hundreds of artists performing their single and an exclusive cover on air.  After a series of heats, three semi-finals, and a weekend-long Grand Final, BBC Radio 1 listeners chose their Ultimate Live Lounge Cover, "Stronger" by Thirty Seconds to Mars.

30 Seconds to Mars (album): 30 Seconds to Mars is the debut studio album by American rock band Thirty Seconds to Mars.  It was first released on August 27, 2002, by Immortal Records and distributed by Virgin Records.  The album was produced by Bob Ezrin, Brian Virtue, and Thirty Seconds to Mars, and was recorded in rural Wyoming during 2001 and early 2002.  It had been in the works for a couple of years, with lead vocalist Jared Leto writing the majority of the songs.

Stronger (Kanye West song): "Stronger" is a song by American rapper Kanye West, released as the second single from his third studio album, "Graduation" (2007).  The production was handled by West, with an extended outro co-produced with Mike Dean.  The composition is electronic in nature, employing synthesizers as its prominent instrument.  For the track, West utilizes a vocoder-affected vocal sample of "Harder, Better, Faster, Stronger" by French house duo Daft Punk.  On "Stronger", West speaks about the resolve that comes when one is faced with adversity, with lyrics at the song's refrain that paraphrase Friedrich Nietzsche's famous dictum, "What does not kill him, makes him stronger."  West also describes "Stronger" as an "emancipation", using the track to vent his frustration over mistakes he made in the past year.

Live Lounge Tour: The Live Lounge Tour is a tour taken by BBC Radio 1 since 2006.  This features Jo Wiley/Fearne Cotton going to the Live Lounge artists' house, houseboat, local pub, mum's house, etc. to have a look around at a place that means something to the artist.  In 2010 the Live Lounge Tour was rebranded the 'Radio 1's Student Tour' with Fearne Cotton and Zane Lowe.

Carnivores Tour: The Carnivores Tour was a co-headlining concert tour by American rock bands Linkin Park and Thirty Seconds to Mars.  It was launched in support of Linkin Park's sixth studio album "The Hunting Party" (2014) and Thirty Seconds to Mars' fourth studio album "Love, Lust, Faith and Dreams" (2013).  The joint tour was officially announced in March 2014 at a press conference, with the full itinerary being revealed.  It began on August 8, 2014 in West Palm Beach, Florida and ended on September 19 in Concord, California, visiting arenas and stadiums throughout North America.  It was promoted by Live Nation and sponsored in-part by Infinity.  American rock band AFI served as the opening act for the tour.

Live Lounge of 2010: Live Lounge of 2010 was a competition to find the best Live Lounge cover of 2010.  After the success of the Ultimate Live Lounge, BBC Radio 1 ran the competition for a second year but only live lounges of the previous year could enter.  The competition had a similar format with listeners voting for their favourite performance to win.  The first 2 rounds had 3 entries pitted against each other, whereas the Semi-Final was between 2 entries rather than 3 like the previous year.

Live Lounge Special: On 27 January 2011 BBC Radio 1 launched a new extended version of the popular Live Lounge dubbed 'Live Lounge Special with...' or sometimes referred to as 'Live Lounge XL'.  The extended live lounge performance differs from the normal performance with an interview at the very beginning of the set rather than at the beginning of each track.  Then the artist performs 5 or 6 tracks uninterrupted, which can include a cover.

A-Z of the Live Lounge: A-Z of the Live Lounge is a competition ran by BBC Radio 1, between archive live lounge performances with the same first letter of their name (e.g. Adele, Arctic Monkey, etc.).  It began in January 2011 and followed on from Live Lounge of 2010 (the first week back after Christmas for regular morning host Fearne Cotton), as the competition style was popular with the audience.

List of songs recorded by Thirty Seconds to Mars: American rock band Thirty Seconds to Mars has recorded material for four studio albums.  The band was formed in Los Angeles, California, in 1998 by brothers Jared and Shannon Leto.  The duo later expanded to a four-piece when they added guitarist Solon Bixler and bassist Matt Wachter to the line-up.  After signing a contract with record label Immortal Records in 1998, the band began to work with producers Bob Ezrin and Brian Virtue on their debut album, "30 Seconds to Mars", which was released in August 2002.  The album produced two singles, "Capricorn (A Brand New Name)" and "Edge of the Earth".  In early 2003, Bixler left the band due to issues primarily related to touring and was replaced by Tomo Miličević.  Thirty Seconds to Mars released their second studio album, "A Beautiful Lie", in August 2005.  The record, produced by Josh Abraham, was preceded by the single "Attack" and spawned two Kerrang!  Award-winning singles, "The Kill" and "From Yesterday".  The album's title track, "A Beautiful Lie", was released as the fourth single in selected territories. " Hunter", a song originally performed by Björk, was covered by the band and added to the track listing of the album.  In March 2007, Wachter left the group to spend more time with his family and was replaced by Tim Kelleher, performing live only.

List of Live Lounge cover versions: This is an alphabetical list of the covers performed on the Live Lounge section of "The Fearne Cotton Show" on BBC Radio 1 (and previously on "The Jo Whiley Show" before Whiley left the station).  As well as this, songs performed in BBC Radio 1Xtra's Live Lounge are featured.  There are also a few that have performed at the Live Lounge tent at festivals such as Glastonbury Festival and Radio 1's Big Weekend.  Also some of the covers are performed on the Live Lounge Tour, in which the songs are performed at a location that means something to the artist.

Supporting paragraphs: Ultimate Live Lounge Stronger (Kanye West song)
Answer: Stronger