2 wonderful songs!
Hi lixincen,
Knew the first one right off the bat! It’s a great track by @BlueFoxMusic called ‘Power Up’: http://audiojungle.net/item/power-up-rock/2508186?s_rank=2
I’m afraid I don’t know the other, but if you can provide the mp3 preview, it can be used to detect the track using Soundizer
Hope this helps
James
Thanks for your help and great idea. I’ll try it later. Thanks again, AurusAudio!
The second one is Street Fighting by @soundroll.
The last one in the other thread is Young Souls Indie Rock by @BlueFoxMusic as well.
Found them by using Soundizer.
Enjoy! 
OMG ! Osama ! Thanks a lot. I’ve been worried about this trouble for a while! Thanks again!
No worries!