the song is 'Ot Serdca K Nebu' which is Russian for 'from heart to sky'. Because he's a bit of a patriot so he has pride in his heart and is ready to shout it in the sky
We love all of the rhinos 🦏 yeah because they are awesome and the best and the greatest and amazing and all ways wicked and funny and hilarious and brilliant and lovable and mischievous and vengeful and cool and wonderful and badass and brave and heroic and villainous and nefarious and scary and spooky and lucky and very powerful and super strong and super strength and super hardcore and invincible and indestructible and incredible and excellent spirit and perfect and freandly and fearless leaderships and loyalty and regeneration and healing and regrowing and growing and crazy and happy and healthy and immortal and looney toons and has superpowers and abilities and angry and healthy and very fun and nice and protective and kind and adorable and cuddly and good and bad and dark and evil!!!!.
