Mac users interested in Last-fm playlist generally download:
Check out an online radio suite for Mac. Work with the collection of instruments for creating your own radio station or simply accessing various types of musical content from a dedicated environment. Manage songs by genre or artist, search for a specific composition, etc.
Additional suggestions for Last-fm playlist by our robot:
LastFM is a "scrobbler" client for the Last.FM service.
or iPod. LastFM is a "scrobbler...to let LastFM access...Share, Tag, Playlist, Love
Last.fm2iTunes imports your Last.fm play counts into your iTunes library.
Last.fm Explorer — an interactive visualization of Last.fm listening history.
It lets you record audio content from any app within your Mac.
Vimeo, Pandora, Lastfm, GrooveShark
RadioBox displays Pandora's mini player in a window and downloads the songs.
art from LastFM, when possible
Best music recorder to grab any audio playing on Mac without quality loss.
podcasts like Lastfm, AOL, BBC