Question: Zwan and Noir Désir, have which genre in common?

Context paragraphs:
Noir Désir: Noir Désir (] ) was a French rock band from Bordeaux.  They were active during the 1980s, 1990s and early 2000s, and have had two albums certified double platinum in France and three certified gold.  They have been an influence on numerous French musicians including Cali, Louise Attaque and Miossec.  While active, the band consisted of Bertrand Cantat (vocals, guitar), Serge Teyssot-Gay (guitar), Jean-Paul Roy (bass guitar) and Denis Barthe (drums).

Bertrand Cantat: Bertrand Cantat (born 5 March 1964) is a French musician and formerly the frontman of rock band Noir Désir.  In 2003, he was convicted of involuntary manslaughter ("murder with indirect intent" - "dolus eventualis") of French actress Marie Trintignant.  He returned to Noir Désir after his release from prison in 2007, playing with the group until it disbanded in 2010.

Noir Désir discography: Noir Désir, a French rock group, have released six studio albums, thirteen singles, two live albums, one live DVD, four compilation albums, and one remix album.

Zwan: The True Poets of Zwan, commonly known simply as Zwan, was an American alternative rock supergroup that was formed by members of The Smashing Pumpkins, Slint, Tortoise, Chavez, and A Perfect Circle.  Zwan was formed in late 2001 by Billy Corgan, lead singer and guitarist of the Smashing Pumpkins after they disbanded in December 2000.  The band released only one album, "Mary Star of the Sea", in 2003, before breaking up acrimoniously that same year during their world tour to promote the album.

Noir Désir en public: Noir Désir en public is a live album by French rock band Noir Désir, released on 19 September 2005.  It documents their last tour in 2002.

Jean-Paul Roy: Jean-Paul Roy (born 14 August 1964 in Civray, Vienne) has been the bassist of French rock group Noir Désir since 1996.

Des Visages des Figures: des Visages des Figures is an album by French rock band Noir Désir.  It was released in France and other European countries on 11 September 2001.  Manu Chao plays the guitar in "Le vent nous portera", among numerous musicians participating in the album.  All music was composed by Noir Désir, where not otherwise specified.  Lyrics are by Bertrand Cantat, where not otherwise specified.

Du ciment sous les plaines: Du ciment sous les plaines is the third album of the French rock group Noir Désir.

Serge Teyssot-Gay: Serge Teyssot-Gay (] ; born 16 May 1963, in Saint-Étienne, Loire) has been the guitarist of French rock group Noir Désir until 29 November 2010.  He met the frontman of the band, Bertrand Cantat, at their school in Bordeaux (Lycée Saint-Genès) during the 1980s.  Aside from Noir Désir, his other musical endeavours include :

Où veux tu qu'je r'garde: Où veux-tu qu'je r'garde is the first album of the French alternative rock group Noir Désir.  Released in 1987, it was produced by Theo Hakola, at the time the singer for the group Passion Fodder.

Supporting paragraphs: Zwan Noir Désir
Answer: rock