SELECT T1.Famous_Title FROM artist AS T1 JOIN volume AS T2 ON T1.Artist_ID  =  T2.Artist_ID WHERE T2.Weeks_on_Top  >  2
Return the famous titles for artists that have volumes that lasted more than 2 weeks on top.
[Schema (values) (types)]: | music_4 |  artist : artist_id (text) , artist (number) , age (text) , famous_title (number) , famous_release_date (text) | volume : volume_id (text) , volume_issue (number) , issue_date (text) , weeks_on_top (number) , song (text) , artist_id (text) | music_festival : id (text) , music_festival (number) , date_of_ceremony (text) , category (number) , volume (text) , result (text);