"Part II (On the Run)" is a song recorded by American rapper Jay-Z from his twelfth studio album Magna Carta Holy Grail (2013) featuring American singer and wife Beyoncé. The song was written by Jay-Z, James Fauntleroy, Timbaland, and J-Roc while the production was handled by the latter two. It is viewed as a sequel to Beyoncé and Jay-Z's 2002 collaboration "'03 Bonnie & Clyde", a song which was rumored to be about their relationship. "Part II (On the Run)" is a slow-tempo Electro-R&B ballad instrumentally complete with synths and drums, and its lyrics refer to a rebellious couple in love and describe their dangerous relationship.

The song charted at numbers 93 and 81 on the UK Singles Chart and US Billboard Hot 100 respectively based on downloads alone, following the release of Magna Carta Holy Grail. It was sent to U.S. contemporary hit radio stations as the third single to be released from the album on February 18, 2014.

"Part II (On the Run)" was written by Jay-Z, James Fauntleroy, Timbaland and J-Roc, while the production was handled by the latter two. It contains a sample of "Believe in Me" by American band One Way and Jay-Z uses Juvenile's "Back That Azz Up" flow when he rhymes "Push your ma'fucka wig back, I did that/I been wilding since a Juve." "Part II (On the Run)" is viewed as a sequel to Beyoncé and Jay-Z's collaboration "'03 Bonnie & Clyde" (2002), when rumors about the pair dating started, as before that neither artist had never talked about it. The lyrics of the song were revealed by Jay-Z prior to its official release on June 27, 2013 thru a Samsung smartphone application. However, on July 4, 2013, the song leaked on the Internet prior to its official premiere.

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