diff --git a/discord/http.py b/discord/http.py
index 8242e1ce78..e62ab1cdde 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -1649,6 +1649,7 @@ def edit_scheduled_event(self, guild_id: Snowflake, event_id: Snowflake, reason:
             'entity_type',
             'status',
             'entity_metadata',
+            'image',
         )
         payload = {k: v for k, v in payload.items() if k in valid_keys}
 
diff --git a/discord/scheduled_events.py b/discord/scheduled_events.py
index 3cae4ebe53..56615405da 100644
--- a/discord/scheduled_events.py
+++ b/discord/scheduled_events.py
@@ -132,6 +132,8 @@ class ScheduledEvent(Hashable):
 
     Attributes
     ----------
+    guild: :class:`Guild`
+        The guild where the scheduled event is happening.
     name: :class:`str`
         The name of the scheduled event.
     description: Optional[:class:`str`]
@@ -161,8 +163,8 @@ class ScheduledEvent(Hashable):
         so there is no need to use this attribute.
     created_at: :class:`datetime.datetime`
         The datetime object of when the event was created.
-    guild: :class:`Guild`
-        The guild where the scheduled event is happening.
+    cover: Optional[:class:`Asset`]
+        The cover image of the scheduled event.
     """
     
     __slots__ = (
@@ -177,6 +179,7 @@ class ScheduledEvent(Hashable):
         'location',
         'guild',
         '_state',
+        '_cover',
         'subscriber_count',
     )
 
@@ -246,14 +249,15 @@ def cover(self) -> Optional[Asset]:
     async def edit(
         self,
         *,
+        reason: Optional[str] = None,
         name: str = MISSING,
         description: str = MISSING,
         status: Union[int, ScheduledEventStatus] = MISSING,
         location: Union[str, int, VoiceChannel, StageChannel, ScheduledEventLocation] = MISSING,
         start_time: datetime.datetime = MISSING,
         end_time: datetime.datetime = MISSING,
+        cover: Optional[bytes] = MISSING,
         privacy_level: ScheduledEventPrivacyLevel = ScheduledEventPrivacyLevel.guild_only,
-        reason: Optional[str] = None
     ) -> Optional[ScheduledEvent]:
         """|coro|
         
@@ -287,6 +291,8 @@ async def edit(
             so there is no need to change this parameter.
         reason: Optional[:class:`str`]
             The reason to show in the audit log.
+        Optional[:class:`Asset`]
+            The cover image of the scheduled event.
 
         Raises
         -------
@@ -315,6 +321,12 @@ async def edit(
         if privacy_level is not MISSING:
             payload["privacy_level"] = int(privacy_level)
 
+        if cover is not MISSING:
+            if cover is None:
+                payload["image"]
+            else:
+                payload["image"] = utils._bytes_to_base64_data(cover)
+
         if location is not MISSING:
             if not isinstance(location, (ScheduledEventLocation, utils._MissingSentinel)):
                 location = ScheduledEventLocation(state=self._state, value=location)
@@ -328,7 +340,9 @@ async def edit(
 
         location = location if location is not MISSING else self.location
         if end_time is MISSING and location.type is ScheduledEventLocationType.external:
-            raise ValidationError("end_time needs to be passed if location type is external.")
+            end_time = self.end_time
+            if end_time is None:
+                raise ValidationError("end_time needs to be passed if location type is external.")
 
         if start_time is not MISSING:
             payload["scheduled_start_time"] = start_time.isoformat()