diff --git a/osu.Game.Modes.Taiko/Objects/Drawable/DrawableDrumRoll.cs b/osu.Game.Modes.Taiko/Objects/Drawable/DrawableDrumRoll.cs
index b599fea57d..f1e2ecef7e 100644
--- a/osu.Game.Modes.Taiko/Objects/Drawable/DrawableDrumRoll.cs
+++ b/osu.Game.Modes.Taiko/Objects/Drawable/DrawableDrumRoll.cs
@@ -13,6 +13,8 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable
     {
         private readonly DrumRoll drumRoll;
 
+        private readonly DrumRollCirclePiece circle;
+
         public DrawableDrumRoll(DrumRoll drumRoll)
             : base(drumRoll)
         {
@@ -21,7 +23,7 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable
             RelativeSizeAxes = Axes.X;
             Width = (float)(drumRoll.Duration / drumRoll.PreEmpt);
 
-            Add(new DrumRollCirclePiece(CreateCirclePiece()));
+            Add(circle = new DrumRollCirclePiece(CreateCirclePiece()));
 
             foreach (var tick in drumRoll.Ticks)
             {
@@ -30,11 +32,19 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable
                     X = (float)((tick.StartTime - HitObject.StartTime) / drumRoll.Duration)
                 };
 
+                newTick.OnJudgement += onTickJudgement;
+
                 AddNested(newTick);
                 Add(newTick);
             }
         }
 
+        private void onTickJudgement(DrawableHitObject<TaikoHitObject, TaikoJudgement> obj)
+        {
+            int countHit = NestedHitObjects.Count(o => o.Judgement.Result == HitResult.Hit);
+            circle.Completion = (float)countHit / NestedHitObjects.Count();
+        }
+
         protected override void LoadComplete()
         {
             base.LoadComplete();
diff --git a/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/CirclePiece.cs b/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/CirclePiece.cs
index ec98feddae..2af469d05f 100644
--- a/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/CirclePiece.cs
+++ b/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/CirclePiece.cs
@@ -36,9 +36,7 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable.Pieces
                 accentColour = value;
 
                 innerBackground.Colour = AccentColour;
-
-                triangles.ColourLight = AccentColour;
-                triangles.ColourDark = AccentColour.Darken(0.1f);
+                triangles.Colour = AccentColour;
 
                 resetEdgeEffects();
             }
@@ -107,6 +105,8 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable.Pieces
                                 Anchor = Anchor.Centre,
                                 Origin = Anchor.Centre,
                                 RelativeSizeAxes = Axes.Both,
+                                ColourLight = Color4.White,
+                                ColourDark = Color4.White.Darken(0.1f)
                             }
                         }
                     },
diff --git a/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/DrumRollCirclePiece.cs b/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/DrumRollCirclePiece.cs
index 076ac5d03a..3be99ab161 100644
--- a/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/DrumRollCirclePiece.cs
+++ b/osu.Game.Modes.Taiko/Objects/Drawable/Pieces/DrumRollCirclePiece.cs
@@ -1,9 +1,12 @@
 // Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
+using OpenTK;
+using OpenTK.Graphics;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.MathUtils;
 using osu.Game.Graphics;
 
 namespace osu.Game.Modes.Taiko.Objects.Drawable.Pieces
@@ -13,8 +16,30 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable.Pieces
     /// </summary>
     public class DrumRollCirclePiece : Container
     {
+        private float completion;
+        /// <summary>
+        /// The amount of the drumroll that has been completed, as a percentage of the number
+        /// of ticks in the drumroll. This determines the internal colour of the drumroll.
+        /// </summary>
+        public float Completion
+        {
+            get { return completion; }
+            set
+            {
+                completion = MathHelper.Clamp(value, 0, 1);
+
+                if (!IsLoaded)
+                    return;
+
+                circle.AccentColour = Interpolation.ValueAt(completion, baseColour, finalColour, 0, 1);
+            }
+        }
+
         private readonly CirclePiece circle;
 
+        private Color4 baseColour;
+        private Color4 finalColour;
+
         public DrumRollCirclePiece(CirclePiece piece)
         {
             RelativeSizeAxes = Axes.X;
@@ -25,7 +50,8 @@ namespace osu.Game.Modes.Taiko.Objects.Drawable.Pieces
         [BackgroundDependencyLoader]
         private void load(OsuColour colours)
         {
-            circle.AccentColour = colours.YellowDark;
+            circle.AccentColour = baseColour = colours.YellowDark;
+            finalColour = colours.YellowDarker;
         }
     }
 }