Why I Love You was a song from the album collaborated on by which two American rappers?
Jay-Z and Kanye West
Title: Why I Love You (Jay-Z and Kanye West song)
Passage: "Why I Love You" is a song by American hip hop artists Kanye West and Jay-Z, from their first collaborative album "Watch the Throne" (2011).  The song features pop musician Mr Hudson who is signed to West's GOOD Music label.  "Why I Love You" heavily samples French house duo Cassius' 2010 single "I <3 U So", which itself is based upon a sample from the original 1971 version of "I Feel a Song (In My Heart)" by Sandra Richardson.  The song almost entirely features Jay-Z rapping and only contains a few lines provided by West.  Lyrically, the song is about the people who have stood in the way of Jay-Z throughout the year and expresses themes of victory and anger.  The song received positive reviews from critics who generally praised the production.
Title: Watch the Throne
Passage: Watch the Throne is a collaborative studio album by American rappers Jay-Z and Kanye West, released on August 8, 2011, by Roc-A-Fella Records, Roc Nation, and Def Jam Recordings.  Before the album, Jay-Z and West had collaborated on their respective singles and with West as a producer on Jay-Z's work.  As longtime friends, they originally sought out to record a five-song EP together, but the project eventually evolved into a full-length album.  Recording sessions took place at various locations and began in November 2010.  Production on the album was led by West himself, alongside a variety of high-profile record producers including Mike Dean, Swizz Beatz, Sak Pase, Jeff Bhasker, The Neptunes and Q-Tip.
Title: Control (Big Sean song)
Passage: "Control" is a song by American hip hop recording artist Big Sean, featuring fellow American rappers Kendrick Lamar and Jay Electronica.  The song was originally intended to be included on Big Sean's second studio album "Hall of Fame" (2013), but was ultimately removed from the final track-listing due to sample clearance issues.  "Control" impacted American mainstream urban radio on August 14, 2013 as a promotional single for "Hall of Fame".  The track contains samples such as "Where I'm From" (1997) by Jay-Z, "El Pueblo Unido Jamás Será Vencido" (1974) by Quilapayún and Sergio Ortega and an interpolation of "Get Bizy" (2011) by Terrace Martin, which also features fellow rappers Kendrick Lamar and Jay Electronica.
Why I Love You (Jay-Z and Kanye West song) Watch the Throne