"Look at Me Now" is a song by American recording artist Chris Brown, featuring American rappers Lil Wayne and Busta Rhymes, released as the second single from Brown's fourth studio album "F.A.M.E." on February 1, 2011.
 The artists co-wrote the song with its producers Afrojack, Diplo, and Free School, with additional writing from Ryan Buendia.
 Musically, "Look at Me Now" is a "Dirty south-inspired" hip hop song that features "thumping bass, spacy synth and horn jam sounds."
"U and Dat" is the second single from E-40's album "My Ghetto Report Card".
 The song features American singers T-Pain and Kandi Burruss, and it was produced by Lil Jon.
 A remix was released in early August with Juelz Santana, Snoop Dogg, and Lil' Flip.
 It was featured on an Amp'd mobile commercial.
 Although it is considered a West coast hip hop song, the song's beat structure incorporates typical southern hip hop snares as well as Lil Jon's signature crunk synths and whistles.
 The catchy, up-tempo and club oriented southern hip hop track allowed the song to peak at #13 of the U.S. Billboard Hot 100.
 The track is credited to have popularized the use of T-Pain as a hook singer on hip hop tracks.
 The song was certified platinum by the RIAA on March 31, 2016.
"Lean Back" is a song by American hip hop group Terror Squad.
 It was released as the second single from their second studio album, "True Story", on June 8, 2004.
 An uptempo hip hop song built for the club environment, it features Fat Joe with Remy Ma handling the second verse.
 It topped the "Billboard" Hot 100 for three weeks from August 21, 2004 and topped the R&B charts for more than a month.
 The song appeared in the video games "Need For Speed Underground 2", "Def Jam Rapstar" and "The Hip Hop Dance Experience".
"I Am Your Leader" is a song recorded by American recording artist Nicki Minaj for her second studio album "" (2012).
 The song features additional rap vocals from hip hop artists Rick Ross and Cam'ron.
 Production of the song was handled by Fernando Garibay & Chauncey "Hit-Boy" Hollis, with writing coming from Minaj, Garibay, Hollis, Ross, and Cam'ron.
 Musically, "I Am Your Leader" is a midtempo hardcore hip hop and electro hop song that contains sparse beats, minimal instrumentation, repetitive, high-pitched, off-pitch synth hooks, and a booming, static bass.
 Lyrically, Minaj "dishes boast-heavy verses about how she’s better than all these other bitches", according to Adam Fleischer of "XXL Magazine".
"New Guy" is a song recorded by Ghanaian rapper Sarkodie featuring American hip pop artist Ace Hood.
 Although intended to be included on his first live album, "Mary" (2015), the inclusion was ultimately scrapped.
 It was released for digital consumption on 10 June 2015 through Sarkcess Music and Ivy League Records.
 Written by the two artists and produced by CedSolo, "New Guy" is an African hip hop and hip hop song that contains alternating rap verses, while its lyrics deal with Sarkodie's desire and motivation for success.
"Look Alive" is a song by American hip hop duo Rae Sremmurd.
 It was released on April 14, 2016 by EarDrummers and Interscope Records, as the second single from their second studio album "SremmLife 2".
 The song was produced by Mike Will Made It.
Lecrae is an American Christian hip hop artist.
 His career began in 2004 when he and Ben Washer co-founded the record label Reach Records.
 In 2007 his first album, "Real Talk" (2005)"," received a nomination at the Stellar Awards and his second album, "After the Music Stops" (2007), was nominated at the GMA Dove Awards.
 The following year Lecrae's third album, "Rebel", became the first Christian hip hop album to chart at number one on the U.S. "Billboard" Gospel Albums Chart.
 In 2011 his fourth album, "Rehab" (2010), received a Grammy nomination for Best Rock Gospel Album.
 That year Lecrae began achieving mainstream success and recognition after he collaborated with DJ Statik Selektah on the song "Live & Let Live" and performed at the 2011 BET Hip Hop Awards Cypher.
 The following year he garnered two GMA Dove awards: Rap/Hip Hop Album of the Year for "" (2011) and Rap/Hip Hop Recorded Song of the Year for "Hallelujah" (2011).
 He also released the mixtape "Church Clothes" and the studio album "Gravity", the latter of which of has been called the most important album in Christian hip hop history by Rapzilla and "Atlanta Daily World".
Rae Sremmurd ( ) is an American hip hop duo originating from Tupelo, Mississippi formed by two brothers, Swae Lee and Slim Jxmmi.
 In 2013, they signed a record deal with Mike Will Made-It's EarDrummers imprint.
 In January 2015, the duo released their debut album "SremmLife", which was certified platinum by the Recording Industry Association of America (RIAA).
 In August 2016, the duo released their sophomore album, "SremmLife 2".
 During that same year, the duo also created their own record label, called SremmLife Crew Records.
Icelandic hip hop is hip hop culture from Iceland, which includes hip hop music and rapping, breakdancing by b-girls and b-boys, and graffiti artists and graffiti writers.
 Early hip hop groups included Quarashi, Subterranean, Team 13 (which later became Twisted Minds), Multifunctionals, Oblivion, Bounce Brothers and Hip Hop Elements (later named Kritikal Mazz).
 The next generation of hip hop performers, notably BlazRoca and Sesar A rapped in Icelandic.
 XXX Rottweiler and Sesar A published the first all Icelandic hip hop albums in 2001.
 Subsequent artists included Bæjarins bestu, Móri, Afkvæmi Guðanna (The Offspring of the Gods), Bent og 7Berg (Bent and 7Berg), Skytturnar (The Marksmen), Hæsta Hendin (The Highest Hand) and Forgotten Lores.
 MGísli Palmi, Þriðja Hæðin (The Third Floor), Cell 7, Kilo, Shadez of Reykjavík, Úlfur Úlfur, and Emmsjé Gauti.
 Icelandic lyrics are usually very direct and aggressive, with battle raps.
 An important hip hop events is Rímnaflæði in Miðberg, a freestyle competition.
 Element Crew has been the leading B-boy crew since 1998.
 The graffiti scene started 1991 with graffiti writers such as ONE, Pharokees, Atom, Sharq, Kez and Youze.
Look Alive is the second EP by post-hardcore band We Are the Ocean.
 The EP was released on November 16, 2009, and the songs were used for their full album release in January 2010, Cutting Our Teeth.
 The song 'Cutting Our Teeth' was used as the album title, although was not actually included in the original album.
 It was, however, included in the deluxe re-issue of the album.
 A promotional video was released for the song 'Look Alive'.

Question: What are the names of the brothers who sang the hip hop song "Look Alive"?
Answer: Swae Lee and Slim Jxmmi