Features:

• Scrobble to lastFM from anything which produces audio with metadata, including video streaming apps, less known audio players or even a song playing in your chat app (if it sends audio metadata to the Android system)
• Sanity check the metadata with lastFM's records before scrobbling.
• View info about a track, such as listener count charts, album art etc
• View recent scrobbles
• Work with recent scrobbles (e.g. love a track, cancel a scrobble)
• Offline scrobbling
• Offline viewing of cached data
• Check what your friends are listening to
• View and play songs similar to a given one