He was in several, including The Dimensions, Long John Baldry and the All Stars/The Hoochie Coochie Men, The Jeff Beck Group, and The Small Faces/Faces.
Stewart's own backing band seems not to have a name other than "The Rod Stewart Group."
No, Rod Stewart was never in the band, Journey.
Rod Stewart was never a Beatle. His band was the Faces.
Anne King is the current trumpet player in Rod Stewart's band.
The current mandolin player in Rod Stewart's band is J'anna Jacoby.
Katja Rieckermann plays saxophone with Rod's band (about 8 years now) along with Jimmy Roberts.
Rod Stewart and Ronnie Wood were band mates in (the) Faces, as well as The Jeff Beck Group before that.
The drummer on Rod Stewart's 1991/1992 Vagabond World Tour was Dave Palmer. As of 2013, he is still Rod Stewart's touring band drummer. See the related link for more information about the band members on that tour.
a jazz band
The violinist playing with Rod Stewart's band is currently J'Anna Jacoby (or J'Anna Jacoby Harrold)
Rod Stewart's current bass player (both guitar and upright) is Conrad Korsch.
He was asked to join Rod's band in March 2013
no.