diff --git a/src/sentry/utils/rollout.py b/src/sentry/utils/rollout.py
index 28bf2d3826f5..e3232252cd3f 100644
--- a/src/sentry/utils/rollout.py
+++ b/src/sentry/utils/rollout.py
@@ -1,7 +1,7 @@
 import logging
 import random
 from collections.abc import Callable
-from typing import Any, Literal, TypeVar
+from typing import Any, Literal, TypeVar, cast
 
 from sentry import options
 from sentry.options import register
@@ -154,9 +154,10 @@ def _callsite_mismatch_log_allowlist_option(cls) -> str:
     def _callsite_use_experimental_data_allowlist_option(cls) -> str:
         """
         This is the callsite-level use-experimental-path rollout option. If the option value
-        contains a callsite, then that callsite will use the experimental-path data. This should
-        generally only be used once you've determined that there is a high rate of partial- or
-        exact- match at the callsite. Defaults to an empty list.
+        contains a callsite, then that callsite will use the experimental-path data. Use ``*`` to
+        enable the experimental path for all callsites. This should generally only be used once
+        you've determined that there is a high rate of partial- or exact-match. Defaults to an
+        empty list.
         """
         return f"dynamic.saferollouts.{cls.ROLLOUT_NAME}.use_experimental_data_callsite_allowlist"
 
@@ -331,15 +332,16 @@ def should_check_experiment(cls, callsite: str) -> bool:
     def should_use_experimental_data(cls, callsite: str) -> bool:
         """
         This function controls whether you use the result of your experimental data. Useful for
-        allowlisting known-safe callsites.
+        allowlisting known-safe callsites. The special callsite ``*`` allows all callsites.
 
         Note: If you are transitioning from an existing, intended-to-be-equivalent dataset, you
         should instead use `check_and_choose` (which has this check built in and has better
         logging).
         """
-        use_experimental_data = callsite in options.get(
-            cls._callsite_use_experimental_data_allowlist_option()
+        allowlist = cast(
+            list[str], options.get(cls._callsite_use_experimental_data_allowlist_option())
         )
+        use_experimental_data = "*" in allowlist or callsite in allowlist
         tags: dict[str, str] = {
             "rollout_name": cls.ROLLOUT_NAME,
             "callsite": callsite,
diff --git a/tests/sentry/utils/test_rollout.py b/tests/sentry/utils/test_rollout.py
index 3d6dea7e8e94..5c466b2eccd7 100644
--- a/tests/sentry/utils/test_rollout.py
+++ b/tests/sentry/utils/test_rollout.py
@@ -165,6 +165,14 @@ def test_experimental_data_use(self) -> None:
                 TestRolloutComparator.check_and_choose("ctl", "exp", "known_good_callsite") == "exp"
             )
 
+        with override_options(
+            {
+                TEST_CALLSITE_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: ["*"],
+            }
+        ):
+            assert TestRolloutComparator.check_and_choose("ctl", "exp", "test_3") == "exp"
+            assert TestRolloutComparator.check_and_choose("ctl", "exp", "other") == "exp"
+
     def test_comparator_use(self) -> None:
         exact_matcher = lambda control, exp: exp["dogs"] == control["dogs"]
         close_matcher = lambda control, exp: exp["dogs"].issubset(control["dogs"])
diff --git a/tests/snuba/api/endpoints/test_organization_events_occurrences.py b/tests/snuba/api/endpoints/test_organization_events_occurrences.py
index 30d03b2eb854..d65328596925 100644
--- a/tests/snuba/api/endpoints/test_organization_events_occurrences.py
+++ b/tests/snuba/api/endpoints/test_organization_events_occurrences.py
@@ -27,7 +27,7 @@ def setUp(self) -> None:
 
     def request_with_feature_flag(self, payload: dict) -> Response:
         with self.options(
-            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: self.callsite_name}
+            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: [self.callsite_name]}
         ):
             response = self.do_request({**payload, "dataset": "occurrences"})
         assert response.status_code == 200, response.content
@@ -526,7 +526,7 @@ def request_with_feature_flag(self, payload: dict) -> Response:
             "organizations:trace-item-details-array-fields": True,
         }
         with self.options(
-            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: self.callsite_name}
+            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: [self.callsite_name]}
         ):
             response = self.do_request({**payload, "dataset": "occurrences"}, features=features)
         assert response.status_code == 200, response.content
@@ -784,7 +784,7 @@ def test_array_fields_dropped_when_feature_flag_off(self) -> None:
         expected_http_url = expected[0]["http_url"]
 
         with self.options(
-            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: self.callsite_name}
+            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: [self.callsite_name]}
         ):
             response = self.do_request(
                 {
diff --git a/tests/snuba/api/endpoints/test_organization_events_timeseries_occurrences.py b/tests/snuba/api/endpoints/test_organization_events_timeseries_occurrences.py
index cf39da16f849..3b1457e6b59e 100644
--- a/tests/snuba/api/endpoints/test_organization_events_timeseries_occurrences.py
+++ b/tests/snuba/api/endpoints/test_organization_events_timeseries_occurrences.py
@@ -73,7 +73,7 @@ def _store_occurrences_and_request_timeseries(
         ]
         self.store_eap_items(occurrences)
         with self.options(
-            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: self.callsite_name}
+            {EAP_OCCURRENCES_USE_EXPERIMENTAL_DATA_ALLOWLIST_OPTION: [self.callsite_name]}
         ):
             return self._do_request(
                 data={