I just had to do this
Let's look back at Belarusian ESC history:
Debut 2004: Aleksandra & Konstantin wins Belarusian selection with "Moj Galilej", the only change for Eurovision is the English new version "My Galileo".
2005: Angelica Agurbash wins the national selection with the entry "Boys and Girls", later they change to the complete new song "Love Me Tonight" for Eurovision.
2006: Polina Smolova is one of the entrants in the national selection with her entry "Sait odinochestva", but she changes her entry to a new one, "Mama", after qualifying to the final. She wins the national selection with her new entry and "Mama" becomes "Mum" in Eurovision.
2007: Dima Koldun is one of the contestants in the national selection (2006) with his entry "Angel mechty", when the final is held in early 2007 he enters a complete new entry "Work Your Magic" and eventually wins with his new entry.
2008: Ruslan Alekhno wins the Belarusian national selection this year with his entry "Hasta La Vista", this is the first time since the 2004 debut that the winning entry wasn't changed to another song during the selection process or after winning, however the entry did in fact get quite a revamp for Eurovision so one can argue that what we got was partly a new song.
2009: For a second year in a row Belarus sticks to their winning entry with no internal changes, Petr Elfimov and "Eyes That Never Lie" goes to Moscow.
2010: A new selection system is used by ONT channel called "Musical Court", which is described as a "potential ESC selection but not necessarily". Artyom Mihalenko wins with his entry "Don't Play In Love". However the BTRC (responsible for Belarusian ESC entries) announce that they'll internally choose another entry instead. The runner-up entry “Far Away” from "Musical Court" is now the new Belarusian entry with the group 3+2 (which has a revamped constellation since “Musical Court”, also including winner Mihalenko). However, the group’s entry for Eurovision changes to the whole new song “Butterflies”.
2011: Anastasia Vinnikova and the entry ”Born in Belarusia” is internally selected this year by BTRC, however due to the political content of the lyrics (or probably EBU pressure) the lyrics of the entry is changed and as a result of that it’s now a revamped lyrics version named “I Am Belarusian”. However this song is withdrawn after alleged breaking the EBU time-rules and a new entry is chosen for Anastasia, titled “I Love Belarus” which ends up being this year’s Belarusian ESC entry.
2012: Alyona Lanskaya wins the Belarusian selection with “All My Life”, after discussion about potential song change, Lanskaya’s team has been accused of rigging the votes, and runner-up Litesound with “We are the Heroes” is chosen instead. Will there be any more song changes? We’ll see…