| Sag mir – Was meinst du? | |
| Cover: | Sag Mir.jpg |
| Border: | yes |
| Type: | single |
| Artist: | Yvonne Catterfeld |
| Album: | Farben meiner Welt |
| Length: | 2:53 |
| Producer: | Hearsay |
| Prev Title: | Du bleibst immer noch du |
| Prev Year: | 2004 |
| Next Title: | Glaub an mich |
| Next Year: | 2005 |
"Sag mir – Was meinst du?" (English: link=no|Tell Me – What Do You Mean?) is a song by German recording artist Yvonne Catterfeld. Initially titled "I Believe", it was written by Vinny Vero, Carl Sahlin, Peter Modén, Peter Ledin, and Kerima Holm, while production was helmed by Hearsay for Multiplay Music. Catterfeld re-wrote the in German along with Björn Wiese and Britta A. Blum.
Catterfeld reteamed with Robert Bröllochs to film a music video for "Sag mir – Was meinst du?."[1]