A method comprising: displaying on a mobile device (300, 500) a playlist (1002, 1016) identifying one or more media items that are playable by the mobile device, while the playlist is being played back by the mobile device; receiving at the mobile device, via an interface comprising an indication of at least one media item in the playlist and playback controls for controlling playback of the playlist by the mobile device, a first input to extend the playlist to one or more zones in a network media system (860, 870); upon receiving the first input, displaying on the mobile device a zone representation that identifies at least one zone from the one or more zones in the network media system, wherein each of the at least one zone includes at least one playback device and is associated with a playback queue that is stored on a given playback device of the zone; receiving at the mobile device a second input indicating a selection of one of the at least one zone; responsively, causing the playback queue associated with the selected zone to be populated with at least one media item corresponding to at least one of the one or more media items identified by the playlist of the mobile device; causing the network media system to be configured such that an action taken, via the mobile device, on the at least one media item identified in the playlist on the mobile device causes a corresponding action to be taken by the zone on the at least one corresponding media item in the playback queue; and displaying on the mobile device a graphical representation indicating that a selection of the zone will cause actions of the mobile device to be extended to the zone. displaying on a mobile device (300, 500) a playlist (1002, 1016) identifying one or more media items that are playable by the mobile device, while the playlist is being played back by the mobile device; receiving at the mobile device, via an interface comprising an indication of at least one media item in the playlist and playback controls for controlling playback of the playlist by the mobile device, a first input to extend the playlist to one or more zones in a network media system (860, 870); upon receiving the first input, displaying on the mobile device a zone representation that identifies at least one zone from the one or more zones in the network media system, wherein each of the at least one zone includes at least one playback device and is associated with a playback queue that is stored on a given playback device of the zone; receiving at the mobile device a second input indicating a selection of one of the at least one zone; responsively, causing the playback queue associated with the selected zone to be populated with at least one media item corresponding to at least one of the one or more media items identified by the playlist of the mobile device; causing the network media system to be configured such that an action taken, via the mobile device, on the at least one media item identified in the playlist on the mobile device causes a corresponding action to be taken by the zone on the at least one corresponding media item in the playback queue; and displaying on the mobile device a graphical representation indicating that a selection of the zone will cause actions of the mobile device to be extended to the zone.