Here is a Sanskrit solkam on Kaveri River from the movie ‘shara paMjara 1971’.
Sung by Shri P B Shrinivas – Music by Shri Vijaya bhaskar

Sholkam:

tulA mAsEtu kAvEri sarvatIrthAshritA nadi
paMchapAtaka saMharti vAjinEha phalapradA
bhaktAnukaMpE munibhAgyalakShmi
nityE jaganmaMgaLadAnashIle
niraMjanE dakShiNadEshagaMge
kAvEri kAvEri mamaprasIdA

View the movie ‘shara panjara’ here:
Song will start at 0:30:10. After that song - kaveri kaveri - will continue:
Spoiler: