diff --git a/homeassistant/components/lastfm/icons.json b/homeassistant/components/lastfm/icons.json
new file mode 100644
index 00000000000..fe453dc53c2
--- /dev/null
+++ b/homeassistant/components/lastfm/icons.json
@@ -0,0 +1,9 @@
+{
+  "entity": {
+    "sensor": {
+      "lastfm": {
+        "default": "mdi:radio-fm"
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/lastfm/sensor.py b/homeassistant/components/lastfm/sensor.py
index 2b022a00107..045fac0c727 100644
--- a/homeassistant/components/lastfm/sensor.py
+++ b/homeassistant/components/lastfm/sensor.py
@@ -43,7 +43,7 @@ class LastFmSensor(CoordinatorEntity[LastFMDataUpdateCoordinator], SensorEntity)
     """A class for the Last.fm account."""
 
     _attr_attribution = "Data provided by Last.fm"
-    _attr_icon = "mdi:radio-fm"
+    _attr_translation_key = "lastfm"
     _attr_has_entity_name = True
     _attr_name = None
 
diff --git a/tests/components/lastfm/snapshots/test_sensor.ambr b/tests/components/lastfm/snapshots/test_sensor.ambr
index 30ad40df428..33f9b7a56fa 100644
--- a/tests/components/lastfm/snapshots/test_sensor.ambr
+++ b/tests/components/lastfm/snapshots/test_sensor.ambr
@@ -5,7 +5,6 @@
       'attribution': 'Data provided by Last.fm',
       'entity_picture': 'image',
       'friendly_name': 'LastFM testaccount1',
-      'icon': 'mdi:radio-fm',
       'last_played': 'artist - title',
       'play_count': 1,
       'top_played': 'artist - title',
@@ -23,7 +22,6 @@
       'attribution': 'Data provided by Last.fm',
       'entity_picture': 'image',
       'friendly_name': 'LastFM testaccount1',
-      'icon': 'mdi:radio-fm',
       'last_played': None,
       'play_count': 0,
       'top_played': None,