diff --git a/libraries/common/src/main/java/androidx/media3/common/TrackGroup.java b/libraries/common/src/main/java/androidx/media3/common/TrackGroup.java
index e500b259d9..738549df32 100644
--- a/libraries/common/src/main/java/androidx/media3/common/TrackGroup.java
+++ b/libraries/common/src/main/java/androidx/media3/common/TrackGroup.java
@@ -161,6 +161,11 @@ public final class TrackGroup {
     return id.equals(other.id) && Arrays.equals(formats, other.formats);
   }
 
+  @Override
+  public String toString() {
+    return id + ": " + Arrays.toString(formats);
+  }
+
   private static final String FIELD_FORMATS = Util.intToStringMaxRadix(0);
   private static final String FIELD_ID = Util.intToStringMaxRadix(1);
 
diff --git a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/TrackGroupArray.java b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/TrackGroupArray.java
index f48664143a..3f513b436a 100644
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/TrackGroupArray.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/TrackGroupArray.java
@@ -115,6 +115,11 @@ public final class TrackGroupArray {
     return length == other.length && trackGroups.equals(other.trackGroups);
   }
 
+  @Override
+  public String toString() {
+    return trackGroups.toString();
+  }
+
   private static final String FIELD_TRACK_GROUPS = Util.intToStringMaxRadix(0);
 
   public Bundle toBundle() {