diff --git a/emmental/nowplaying/__init__.py b/emmental/nowplaying/__init__.py
index 3dab0f6..02722c2 100644
--- a/emmental/nowplaying/__init__.py
+++ b/emmental/nowplaying/__init__.py
@@ -39,11 +39,14 @@ class Card(Gtk.Box):
         self._bottom_box = Gtk.Box.new(Gtk.Orientation.HORIZONTAL, 0)
         self._favorite = buttons.ImageToggle("heart-filled",
                                              "heart-outline-thick-symbolic",
+                                             tooltip_text="add to "
+                                                          "'Favorite Tracks'",
                                              icon_size=Gtk.IconSize.LARGE,
                                              has_frame=False, sensitive=False,
                                              valign=Gtk.Align.CENTER)
         self._jump = buttons.Button(icon_name="go-jump", has_frame=False,
                                     icon_size=Gtk.IconSize.LARGE,
+                                    tooltip_text="scroll to current track",
                                     valign=Gtk.Align.CENTER, sensitive=False)
         self._seeker = seeker.Scale(sensitive=False)
 
diff --git a/emmental/nowplaying/controls.py b/emmental/nowplaying/controls.py
index 36ec4ef..65bf3a6 100644
--- a/emmental/nowplaying/controls.py
+++ b/emmental/nowplaying/controls.py
@@ -37,14 +37,16 @@ class Controls(Gtk.Box):
 
         self._autopause = autopause.Button()
         self._prev = PillButton(icon_name="media-skip-backward",
+                                tooltip_text="previous track", sensitive=False)
+        self._play = PillButton(icon_name="play-large", tooltip_text="play",
                                 sensitive=False)
-        self._play = PillButton(icon_name="play-large", sensitive=False)
         self._pause = buttons.SplitButton(icon_name="pause-large",
                                           icon_size=Gtk.IconSize.LARGE,
+                                          tooltip_text="pause",
                                           secondary=self._autopause,
                                           visible=False, sensitive=False)
         self._next = PillButton(icon_name="media-skip-forward",
-                                sensitive=False)
+                                tooltip_text="next track", sensitive=False)
 
         for button in [self._prev, self._play, self._pause, self._next]:
             self.append(button)
diff --git a/tests/nowplaying/test_controls.py b/tests/nowplaying/test_controls.py
index 2fd398c..4715347 100644
--- a/tests/nowplaying/test_controls.py
+++ b/tests/nowplaying/test_controls.py
@@ -51,6 +51,8 @@ class TestControls(unittest.TestCase):
         """Test the previous button."""
         self.assertIsInstance(self.controls._prev,
                               emmental.nowplaying.controls.PillButton)
+        self.assertEqual(self.controls._prev.get_tooltip_text(),
+                         "previous track")
         self.assertEqual(self.controls._prev.icon_name, "media-skip-backward")
         self.assertEqual(self.controls.get_first_child(), self.controls._prev)
 
@@ -62,6 +64,7 @@ class TestControls(unittest.TestCase):
         """Test the play button."""
         self.assertIsInstance(self.controls._play,
                               emmental.nowplaying.controls.PillButton)
+        self.assertEqual(self.controls._play.get_tooltip_text(), "play")
         self.assertEqual(self.controls._play.icon_name, "play-large")
         self.assertEqual(self.controls._prev.get_next_sibling(),
                          self.controls._play)
@@ -81,6 +84,7 @@ class TestControls(unittest.TestCase):
         """Test the pause button."""
         self.assertIsInstance(self.controls._pause,
                               emmental.buttons.SplitButton)
+        self.assertEqual(self.controls._pause.get_tooltip_text(), "pause")
         self.assertEqual(self.controls._pause.icon_name, "pause-large")
         self.assertEqual(self.controls._pause.icon_size,
                          Gtk.IconSize.LARGE)
@@ -116,6 +120,7 @@ class TestControls(unittest.TestCase):
         """Test the next button."""
         self.assertIsInstance(self.controls._next,
                               emmental.nowplaying.controls.PillButton)
+        self.assertEqual(self.controls._next.get_tooltip_text(), "next track")
         self.assertEqual(self.controls._next.icon_name, "media-skip-forward")
 
         self.controls._next.connect("clicked", self.clicked)
diff --git a/tests/nowplaying/test_nowplaying.py b/tests/nowplaying/test_nowplaying.py
index b199607..8230ebe 100644
--- a/tests/nowplaying/test_nowplaying.py
+++ b/tests/nowplaying/test_nowplaying.py
@@ -91,6 +91,8 @@ class TestNowPlaying(unittest.TestCase):
         self.assertEqual(self.card._favorite.active_icon_name, "heart-filled")
         self.assertEqual(self.card._favorite.inactive_icon_name,
                          "heart-outline-thick-symbolic")
+        self.assertEqual(self.card._favorite.get_tooltip_text(),
+                         "add to 'Favorite Tracks'")
         self.assertEqual(self.card._favorite.icon_size, Gtk.IconSize.LARGE)
         self.assertEqual(self.card._favorite.get_valign(), Gtk.Align.CENTER)
         self.assertFalse(self.card._favorite.get_has_frame())
@@ -112,6 +114,8 @@ class TestNowPlaying(unittest.TestCase):
                          self.card._jump)
 
         self.assertEqual(self.card._jump.icon_name, "go-jump")
+        self.assertEqual(self.card._jump.get_tooltip_text(),
+                         "scroll to current track")
         self.assertEqual(self.card._jump.icon_size, Gtk.IconSize.LARGE)
         self.assertEqual(self.card._jump.get_valign(), Gtk.Align.CENTER)
         self.assertFalse(self.card._jump.get_has_frame())