diff --git a/playbook/app/pb_kits/playbook/pb_advanced_table/_advanced_table.tsx b/playbook/app/pb_kits/playbook/pb_advanced_table/_advanced_table.tsx
index 63ee4a095f..c88531837d 100644
--- a/playbook/app/pb_kits/playbook/pb_advanced_table/_advanced_table.tsx
+++ b/playbook/app/pb_kits/playbook/pb_advanced_table/_advanced_table.tsx
@@ -152,14 +152,12 @@ const AdvancedTable = (props: AdvancedTableProps) => {
           return {
             header: column.label || "",
             columns: buildColumns(column.columns),
-            headerClassName: 'grouped-header',
           };
         } else {
           // Define the base column structure
           const columnStructure = {
             ...columnHelper.accessor(column.accessor, {
               header: column.label || "",
-              cellClassName: 'leaf-column-cell',
             }),
           };
 
diff --git a/playbook/app/pb_kits/playbook/pb_advanced_table/docs/_advanced_table_column_headers.md b/playbook/app/pb_kits/playbook/pb_advanced_table/docs/_advanced_table_column_headers.md
new file mode 100644
index 0000000000..fa1e5714ed
--- /dev/null
+++ b/playbook/app/pb_kits/playbook/pb_advanced_table/docs/_advanced_table_column_headers.md
@@ -0,0 +1 @@
+Use a nested `columns` array in your columnDefinitions to create multiple header rows. Any column with `columns` is treated as a grouped header, and its child columns are displayed beneath it.
\ No newline at end of file
diff --git a/playbook/app/pb_kits/playbook/pb_advanced_table/docs/example.yml b/playbook/app/pb_kits/playbook/pb_advanced_table/docs/example.yml
index e84b193288..7dd856fc6e 100644
--- a/playbook/app/pb_kits/playbook/pb_advanced_table/docs/example.yml
+++ b/playbook/app/pb_kits/playbook/pb_advanced_table/docs/example.yml
@@ -21,4 +21,4 @@ examples:
   - advanced_table_custom_cell: Custom Components for Cells
   - advanced_table_pagination: Pagination
   - advanced_table_pagination_with_props: Pagination Props
-  - advanced_table_column_headers: Multiple Column Headers
+  - advanced_table_column_headers: Multi-Header Columns