diff --git a/openverse_api/catalog/api/migrations/0039_audio_set_thumbs.py b/openverse_api/catalog/api/migrations/0039_audio_set_thumbs.py
new file mode 100644
index 000000000..83ff131c7
--- /dev/null
+++ b/openverse_api/catalog/api/migrations/0039_audio_set_thumbs.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.7 on 2021-10-11 15:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0038_filetypes'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='audioset',
+            name='thumbnail',
+            field=models.URLField(blank=True, help_text='The thumbnail for the media.', max_length=1000, null=True),
+        ),
+    ]
diff --git a/openverse_api/catalog/api/migrations/0040_nullable_urls.py b/openverse_api/catalog/api/migrations/0040_nullable_urls.py
new file mode 100644
index 000000000..d884ea818
--- /dev/null
+++ b/openverse_api/catalog/api/migrations/0040_nullable_urls.py
@@ -0,0 +1,28 @@
+# Generated by Django 3.2.7 on 2021-10-11 15:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0039_audio_set_thumbs'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='audio',
+            name='url',
+            field=models.URLField(blank=True, help_text='The actual URL to the media file.', max_length=1000, null=True, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='audioset',
+            name='url',
+            field=models.URLField(blank=True, help_text='The actual URL to the media file.', max_length=1000, null=True, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='image',
+            name='url',
+            field=models.URLField(blank=True, help_text='The actual URL to the media file.', max_length=1000, null=True, unique=True),
+        ),
+    ]
diff --git a/openverse_api/catalog/api/models/media.py b/openverse_api/catalog/api/models/media.py
index 415abbb46..6e52490bc 100644
--- a/openverse_api/catalog/api/models/media.py
+++ b/openverse_api/catalog/api/models/media.py
@@ -25,10 +25,6 @@ class AbstractMedia(IdentifierMixin, MediaMixin, OpenLedgerModel):
     information common to all media types indexed by Openverse.
     """
 
-    thumbnail = models.URLField(
-        max_length=1000, blank=True, null=True, help_text="The thumbnail for the media."
-    )
-
     watermarked = models.BooleanField(blank=True, null=True)
 
     license = models.CharField(max_length=50)
diff --git a/openverse_api/catalog/api/models/mixins.py b/openverse_api/catalog/api/models/mixins.py
index 898d2094e..5607bcbb3 100644
--- a/openverse_api/catalog/api/models/mixins.py
+++ b/openverse_api/catalog/api/models/mixins.py
@@ -53,6 +53,11 @@ class MediaMixin(models.Model):
     creator = models.CharField(max_length=2000, blank=True, null=True)
     creator_url = models.URLField(max_length=2000, blank=True, null=True)
 
+    # Because all forms of media have a thumbnail for visual representation
+    thumbnail = models.URLField(
+        max_length=1000, blank=True, null=True, help_text="The thumbnail for the media."
+    )
+
     class Meta:
         abstract = True
 
@@ -64,7 +69,11 @@ class FileMixin(models.Model):
     """
 
     url = models.URLField(
-        unique=True, max_length=1000, help_text="The actual URL to the media file."
+        unique=True,
+        max_length=1000,
+        help_text="The actual URL to the media file.",
+        blank=True,
+        null=True,
     )
     filesize = models.IntegerField(
         blank=True,
diff --git a/openverse_api/catalog/api/views/audio_views.py b/openverse_api/catalog/api/views/audio_views.py
index 266626a7f..61ecc0bde 100644
--- a/openverse_api/catalog/api/views/audio_views.py
+++ b/openverse_api/catalog/api/views/audio_views.py
@@ -65,7 +65,7 @@ def thumbnail(self, request, *_, **__):
         image_url = None
         if thumbnail := audio.thumbnail:
             image_url = thumbnail
-        elif audio.audio_set and (thumbnail := audio.audio_set.url):
+        elif audio.audio_set and (thumbnail := audio.audio_set.thumbnail):
             image_url = thumbnail
         if not image_url:
             raise get_api_exception("Could not find artwork.", 404)